40777640

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3257}}^1$

素因数の和:3581

約数の個数: 32

約数和(自身を含む): 92071080

約数和(自身を除く): 51293440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 3257, 6260, 6514, 12520, 13028, 16285, 26056, 32570, 65140, 130280, 1019441, 2038882, 4077764, 5097205, 8155528, 10194410, 20388820, 40777640]

約数ペア:

[(1, 40777640), (2, 20388820), (4, 10194410), (5, 8155528), (8, 5097205), (10, 4077764), (20, 2038882), (40, 1019441), (313, 130280), (626, 65140), (1252, 32570), (1565, 26056), (2504, 16285), (3130, 13028), (3257, 12520), (6260, 6514)]