165164080

素因数分解:

$2^4\times 5^1\times {\mathrm{2064551}}^1$

素因数の和:2064564

約数の個数: 20

約数和(自身を含む): 384006672

約数和(自身を除く): 218842592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2064551, 4129102, 8258204, 10322755, 16516408, 20645510, 33032816, 41291020, 82582040, 165164080]

約数ペア:

[(1, 165164080), (2, 82582040), (4, 41291020), (5, 33032816), (8, 20645510), (10, 16516408), (16, 10322755), (20, 8258204), (40, 4129102), (80, 2064551)]