18802122620

素因数分解:

$2^2\times 5^1\times {\mathrm{940106131}}^1$

素因数の和:940106140

約数の個数: 12

約数和(自身を含む): 39484457544

約数和(自身を除く): 20682334924

約数列:

[1, 2, 4, 5, 10, 20, 940106131, 1880212262, 3760424524, 4700530655, 9401061310, 18802122620]

約数ペア:

[(1, 18802122620), (2, 9401061310), (4, 4700530655), (5, 3760424524), (10, 1880212262), (20, 940106131)]