129616360

素因数分解:

$2^3\times 5^1\times {\mathrm{3240409}}^1$

素因数の和:3240420

約数の個数: 16

約数和(自身を含む): 291636900

約数和(自身を除く): 162020540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3240409, 6480818, 12961636, 16202045, 25923272, 32404090, 64808180, 129616360]

約数ペア:

[(1, 129616360), (2, 64808180), (4, 32404090), (5, 25923272), (8, 16202045), (10, 12961636), (20, 6480818), (40, 3240409)]