18874660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4349}}^1$

素因数の和:4396

約数の個数: 48

約数和(自身を含む): 46771200

約数和(自身を除く): 27896540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4349, 8698, 17396, 21745, 30443, 43490, 60886, 86980, 121772, 134819, 152215, 269638, 304430, 539276, 608860, 674095, 943733, 1348190, 1887466, 2696380, 3774932, 4718665, 9437330, 18874660]

約数ペア:

[(1, 18874660), (2, 9437330), (4, 4718665), (5, 3774932), (7, 2696380), (10, 1887466), (14, 1348190), (20, 943733), (28, 674095), (31, 608860), (35, 539276), (62, 304430), (70, 269638), (124, 152215), (140, 134819), (155, 121772), (217, 86980), (310, 60886), (434, 43490), (620, 30443), (868, 21745), (1085, 17396), (2170, 8698), (4340, 4349)]