158127920

素因数分解:

$2^4\times 5^1\times {\mathrm{1976599}}^1$

素因数の和:1976612

約数の個数: 20

約数和(自身を含む): 367647600

約数和(自身を除く): 209519680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1976599, 3953198, 7906396, 9882995, 15812792, 19765990, 31625584, 39531980, 79063960, 158127920]

約数ペア:

[(1, 158127920), (2, 79063960), (4, 39531980), (5, 31625584), (8, 19765990), (10, 15812792), (16, 9882995), (20, 7906396), (40, 3953198), (80, 1976599)]