31112980

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1811}}^1$

素因数の和:2679

約数の個数: 24

約数和(自身を含む): 65449440

約数和(自身を除く): 34336460

約数列:

[1, 2, 4, 5, 10, 20, 859, 1718, 1811, 3436, 3622, 4295, 7244, 8590, 9055, 17180, 18110, 36220, 1555649, 3111298, 6222596, 7778245, 15556490, 31112980]

約数ペア:

[(1, 31112980), (2, 15556490), (4, 7778245), (5, 6222596), (10, 3111298), (20, 1555649), (859, 36220), (1718, 18110), (1811, 17180), (3436, 9055), (3622, 8590), (4295, 7244)]