20172080

素因数分解:

$2^4\times 5^1\times {\mathrm{252151}}^1$

素因数の和:252164

約数の個数: 20

約数和(自身を含む): 46900272

約数和(自身を除く): 26728192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252151, 504302, 1008604, 1260755, 2017208, 2521510, 4034416, 5043020, 10086040, 20172080]

約数ペア:

[(1, 20172080), (2, 10086040), (4, 5043020), (5, 4034416), (8, 2521510), (10, 2017208), (16, 1260755), (20, 1008604), (40, 504302), (80, 252151)]