第5个回答 2020-01-30
拓展：1000以内合数：
4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58,60,62,63,64,65,66,68,69,70,72,74,75,76,77,78,80,81,82,84,85,86,87,88,90,91,92,93,94,95,96,98,99,100
102,104,105,106,108,110,111,112,114,115,116,117,118,119,120,121,122,123,124,125,126,128,129,130,132,133,134,135,136,138,140,141,142,143,144,145,146,147,148,150,152,153,154,155,156,158,159,160,161,162,164,165,166,168,169,170,171,172,174,175,176,177,178,180,182,183,184,185,186,187,188,189,190,192,194,195,196,198,200,201,202,203,204,205,206,207,208,209,210,212,213,214,215,216,217,218,219,220,221,222,224,225,226,228,230,231,232,234,235,236,237,238,240,242,243,244,245,246,247,248,249,250,252,253,254,255,256,258,259,260,261,262,264,265,266,267,268,270,272,273,274,275,276,278,279,280,282,284,285,286,287,288,289,290,291,292,294,295,296,297,298,299,300,301,302,303,304,305,306,308,309,310,312,314,315,316,318,319,320,321,322,323,324,325,326,327,328,329,330,332,333,334,335,336,338,339,340,341,342,343,344,345,346,348,350,351,352,354,355,356,357,358,360,361,362,363,364,365,366,368,369,370,371,372,374,375,376,377,378,380,381,382,384,385,386,387,388,390,391,392,393,394,395,396,398,399,400,402,403,404,405,406,407,408,410,411,412,413,414,415,416,417,418,420,422,423,424,425,426,427,428,429,430,432,434,435,436,437,438,440,441,442,444,445,446,447,448,450,451,452,453,454,455,456,458,459,460,462,464,465,466,468,469,470,471,472,473,474,475,476,477,478,480,481,482,483,484,485,486,488,489,490,492,493,494,495,496,497,498,500,501,502,504,505,506,507,508,510,511,512,513,514,515,516,517,518,519,520,522,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,542,543,544,545,546,548,549,550,551,552,553,554,555,556,558,559,560,561,562,564,565,566,567,568,570,572,573,574,575,576,578,579,580,581,582,583,584,585,586,588,589,590,591,592,594,595,596,597,598,600,602,603,604,605,606,608,609,610,611,612,614,615,616,618,620,621,622,623,624,625,626,627,628,629,630,632,633,634,635,636,637,638,639,640,642,644,645,646,648,649,650,651,652,654,655,656,657,658,660,662,663,664,665,666,667,668,669,670,671,672,674,675,676,678,679,680,681,682,684,685,686,687,688,689,690,692,693,694,695,696,697,698,699,700,702,703,704,705,706,707,708,710,711,712,713,714,715,716,717,718,720,721,722,723,724,725,726,728,729,730,731,732,734,735,736,737,738,740,741,742,744,745,746,747,748,749,750,752,753,754,755,756,758,759,760,762,763,764,765,766,767,768,770,771,772,774,775,776,777,778,779,780,781,782,783,784,785,786,788,789,790,791,792,793,794,795,796,798,799,800,801,802,803,804,805,806,807,808,810,812,813,814,815,816,817,818,819,820,822,824,825,826,828,830,831,832,833,834,835,836,837,838,840,841,842,843,844,845,846,847,848,849,850,851,852,854,855,856,858,860,861,862,864,865,866,867,868,869,870,871,872,873,874,875,876,878,879,880,882,884,885,886,888,889,890,891,892,893,894,895,896,897,898,899,900,901,902,903,904,905,906,908,909,910,912,913,914,915,916,917,918,920,921,922,923,924,925,926,927,928,930,931,932,933,934,935,936,938,939,940,942,943,944,945,946,948,949,950,951,952,954,955,956,957,958,959,960,961,962,963,964,965,966,968,969,970,972,973,974,975,976,978,979,980,981,982,984,985,986,987,988,989,990,992,993,994,995,996,998,999
合计：830个