81356525

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 104309544

約数和(自身を除く): 22953019

約数列:

[1, 5, 25, 37, 185, 281, 313, 925, 1405, 1565, 7025, 7825, 10397, 11581, 51985, 57905, 87953, 259925, 289525, 439765, 2198825, 3254261, 16271305, 81356525]

約数ペア:

[(1, 81356525), (5, 16271305), (25, 3254261), (37, 2198825), (185, 439765), (281, 289525), (313, 259925), (925, 87953), (1405, 57905), (1565, 51985), (7025, 11581), (7825, 10397)]