20210497640

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1614257}}^1$

素因数の和:1614581

約数の個数: 32

約数和(自身を含む): 45618931080

約数和(自身を除く): 25408433440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 1614257, 3228514, 6457028, 8071285, 12914056, 16142570, 32285140, 64570280, 505262441, 1010524882, 2021049764, 2526312205, 4042099528, 5052624410, 10105248820, 20210497640]

約数ペア:

[(1, 20210497640), (2, 10105248820), (4, 5052624410), (5, 4042099528), (8, 2526312205), (10, 2021049764), (20, 1010524882), (40, 505262441), (313, 64570280), (626, 32285140), (1252, 16142570), (1565, 12914056), (2504, 8071285), (3130, 6457028), (6260, 3228514), (12520, 1614257)]