413147725

素因数分解:

$5^2\times {\mathrm{821}}^1\times {\mathrm{20129}}^1$

素因数の和:20960

約数の個数: 12

約数和(自身を含む): 512952660

約数和(自身を除く): 99804935

約数列:

[1, 5, 25, 821, 4105, 20129, 20525, 100645, 503225, 16525909, 82629545, 413147725]

約数ペア:

[(1, 413147725), (5, 82629545), (25, 16525909), (821, 503225), (4105, 100645), (20129, 20525)]