20349718700

素因数分解:

$2^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1248449}}^1$

素因数の和:1248626

約数の個数: 36

約数和(自身を含む): 44429838600

約数和(自身を除く): 24080119900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 163, 326, 652, 815, 1630, 3260, 4075, 8150, 16300, 1248449, 2496898, 4993796, 6242245, 12484490, 24968980, 31211225, 62422450, 124844900, 203497187, 406994374, 813988748, 1017485935, 2034971870, 4069943740, 5087429675, 10174859350, 20349718700]

約数ペア:

[(1, 20349718700), (2, 10174859350), (4, 5087429675), (5, 4069943740), (10, 2034971870), (20, 1017485935), (25, 813988748), (50, 406994374), (100, 203497187), (163, 124844900), (326, 62422450), (652, 31211225), (815, 24968980), (1630, 12484490), (3260, 6242245), (4075, 4993796), (8150, 2496898), (16300, 1248449)]