20325940

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4217}}^1$

素因数の和:4467

約数の個数: 24

約数和(自身を含む): 42871752

約数和(自身を除く): 22545812

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4217, 4820, 8434, 16868, 21085, 42170, 84340, 1016297, 2032594, 4065188, 5081485, 10162970, 20325940]

約数ペア:

[(1, 20325940), (2, 10162970), (4, 5081485), (5, 4065188), (10, 2032594), (20, 1016297), (241, 84340), (482, 42170), (964, 21085), (1205, 16868), (2410, 8434), (4217, 4820)]