164492080

素因数分解:

$2^4\times 5^1\times {\mathrm{2056151}}^1$

素因数の和:2056164

約数の個数: 20

約数和(自身を含む): 382444272

約数和(自身を除く): 217952192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2056151, 4112302, 8224604, 10280755, 16449208, 20561510, 32898416, 41123020, 82246040, 164492080]

約数ペア:

[(1, 164492080), (2, 82246040), (4, 41123020), (5, 32898416), (8, 20561510), (10, 16449208), (16, 10280755), (20, 8224604), (40, 4112302), (80, 2056151)]