7939695880

素因数分解:

$2^3\times 5^1\times {\mathrm{198492397}}^1$

素因数の和:198492408

約数の個数: 16

約数和(自身を含む): 17864315820

約数和(自身を除く): 9924619940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 198492397, 396984794, 793969588, 992461985, 1587939176, 1984923970, 3969847940, 7939695880]

約数ペア:

[(1, 7939695880), (2, 3969847940), (4, 1984923970), (5, 1587939176), (8, 992461985), (10, 793969588), (20, 396984794), (40, 198492397)]