25297820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{30851}}^1$

素因数の和:30901

約数の個数: 24

約数和(自身を含む): 54422928

約数和(自身を除く): 29125108

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 30851, 61702, 123404, 154255, 308510, 617020, 1264891, 2529782, 5059564, 6324455, 12648910, 25297820]

約数ペア:

[(1, 25297820), (2, 12648910), (4, 6324455), (5, 5059564), (10, 2529782), (20, 1264891), (41, 617020), (82, 308510), (164, 154255), (205, 123404), (410, 61702), (820, 30851)]