15857680

素因数分解:

$2^4\times 5^1\times {\mathrm{198221}}^1$

素因数の和:198234

約数の個数: 20

約数和(自身を含む): 36869292

約数和(自身を除く): 21011612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198221, 396442, 792884, 991105, 1585768, 1982210, 3171536, 3964420, 7928840, 15857680]

約数ペア:

[(1, 15857680), (2, 7928840), (4, 3964420), (5, 3171536), (8, 1982210), (10, 1585768), (16, 991105), (20, 792884), (40, 396442), (80, 198221)]