31157620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{409}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 70877520

約数和(自身を除く): 39719900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 293, 409, 586, 818, 1172, 1465, 1636, 2045, 2930, 3809, 4090, 5317, 5860, 7618, 8180, 10634, 15236, 19045, 21268, 26585, 38090, 53170, 76180, 106340, 119837, 239674, 479348, 599185, 1198370, 1557881, 2396740, 3115762, 6231524, 7789405, 15578810, 31157620]

約数ペア:

[(1, 31157620), (2, 15578810), (4, 7789405), (5, 6231524), (10, 3115762), (13, 2396740), (20, 1557881), (26, 1198370), (52, 599185), (65, 479348), (130, 239674), (260, 119837), (293, 106340), (409, 76180), (586, 53170), (818, 38090), (1172, 26585), (1465, 21268), (1636, 19045), (2045, 15236), (2930, 10634), (3809, 8180), (4090, 7618), (5317, 5860)]