156720425

素因数分解:

$5^2\times {\mathrm{163}}^1\times {\mathrm{38459}}^1$

素因数の和:38632

約数の個数: 12

約数和(自身を含む): 195530640

約数和(自身を除く): 38810215

約数列:

[1, 5, 25, 163, 815, 4075, 38459, 192295, 961475, 6268817, 31344085, 156720425]

約数ペア:

[(1, 156720425), (5, 31344085), (25, 6268817), (163, 961475), (815, 192295), (4075, 38459)]