90628225

素因数分解:

$5^2\times {\mathrm{809}}^1\times {\mathrm{4481}}^1$

素因数の和:5300

約数の個数: 12

約数和(自身を含む): 112543020

約数和(自身を除く): 21914795

約数列:

[1, 5, 25, 809, 4045, 4481, 20225, 22405, 112025, 3625129, 18125645, 90628225]

約数ペア:

[(1, 90628225), (5, 18125645), (25, 3625129), (809, 112025), (4045, 22405), (4481, 20225)]