397123780

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{52391}}^1$

素因数の和:52779

約数の個数: 24

約数和(自身を含む): 836176320

約数和(自身を除く): 439052540

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 3790, 7580, 52391, 104782, 209564, 261955, 523910, 1047820, 19856189, 39712378, 79424756, 99280945, 198561890, 397123780]

約数ペア:

[(1, 397123780), (2, 198561890), (4, 99280945), (5, 79424756), (10, 39712378), (20, 19856189), (379, 1047820), (758, 523910), (1516, 261955), (1895, 209564), (3790, 104782), (7580, 52391)]