90403180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{645737}}^1$

素因数の和:645753

約数の個数: 24

約数和(自身を含む): 216967968

約数和(自身を除く): 126564788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 645737, 1291474, 2582948, 3228685, 4520159, 6457370, 9040318, 12914740, 18080636, 22600795, 45201590, 90403180]

約数ペア:

[(1, 90403180), (2, 45201590), (4, 22600795), (5, 18080636), (7, 12914740), (10, 9040318), (14, 6457370), (20, 4520159), (28, 3228685), (35, 2582948), (70, 1291474), (140, 645737)]