220180225

素因数分解:

$5^2\times {\mathrm{311}}^1\times {\mathrm{28319}}^1$

素因数の和:28640

約数の個数: 12

約数和(自身を含む): 273911040

約数和(自身を除く): 53730815

約数列:

[1, 5, 25, 311, 1555, 7775, 28319, 141595, 707975, 8807209, 44036045, 220180225]

約数ペア:

[(1, 220180225), (5, 44036045), (25, 8807209), (311, 707975), (1555, 141595), (7775, 28319)]