28311400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10889}}^1$

素因数の和:10918

約数の個数: 48

約数和(自身を含む): 70893900

約数和(自身を除く): 42582500

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 10889, 21778, 43556, 54445, 87112, 108890, 141557, 217780, 272225, 283114, 435560, 544450, 566228, 707785, 1088900, 1132456, 1415570, 2177800, 2831140, 3538925, 5662280, 7077850, 14155700, 28311400]

約数ペア:

[(1, 28311400), (2, 14155700), (4, 7077850), (5, 5662280), (8, 3538925), (10, 2831140), (13, 2177800), (20, 1415570), (25, 1132456), (26, 1088900), (40, 707785), (50, 566228), (52, 544450), (65, 435560), (100, 283114), (104, 272225), (130, 217780), (200, 141557), (260, 108890), (325, 87112), (520, 54445), (650, 43556), (1300, 21778), (2600, 10889)]