81836075

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 104341536

約数和(自身を除く): 22505461

約数列:

[1, 5, 25, 61, 103, 305, 515, 521, 1525, 2575, 2605, 6283, 13025, 31415, 31781, 53663, 157075, 158905, 268315, 794525, 1341575, 3273443, 16367215, 81836075]

約数ペア:

[(1, 81836075), (5, 16367215), (25, 3273443), (61, 1341575), (103, 794525), (305, 268315), (515, 158905), (521, 157075), (1525, 53663), (2575, 31781), (2605, 31415), (6283, 13025)]