26686420

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1931}}^1$

素因数の和:2631

約数の個数: 24

約数和(自身を含む): 56151648

約数和(自身を除く): 29465228

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1931, 2764, 3455, 3862, 6910, 7724, 9655, 13820, 19310, 38620, 1334321, 2668642, 5337284, 6671605, 13343210, 26686420]

約数ペア:

[(1, 26686420), (2, 13343210), (4, 6671605), (5, 5337284), (10, 2668642), (20, 1334321), (691, 38620), (1382, 19310), (1931, 13820), (2764, 9655), (3455, 7724), (3862, 6910)]