20281675

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 26373312

約数和(自身を除く): 6091637

約数列:

[1, 5, 25, 41, 47, 205, 235, 421, 1025, 1175, 1927, 2105, 9635, 10525, 17261, 19787, 48175, 86305, 98935, 431525, 494675, 811267, 4056335, 20281675]

約数ペア:

[(1, 20281675), (5, 4056335), (25, 811267), (41, 494675), (47, 431525), (205, 98935), (235, 86305), (421, 48175), (1025, 19787), (1175, 17261), (1927, 10525), (2105, 9635)]