20163264560

素因数分解:

$2^4\times 5^1\times {\mathrm{252040807}}^1$

素因数の和:252040820

約数の個数: 20

約数和(自身を含む): 46879590288

約数和(自身を除く): 26716325728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252040807, 504081614, 1008163228, 1260204035, 2016326456, 2520408070, 4032652912, 5040816140, 10081632280, 20163264560]

約数ペア:

[(1, 20163264560), (2, 10081632280), (4, 5040816140), (5, 4032652912), (8, 2520408070), (10, 2016326456), (16, 1260204035), (20, 1008163228), (40, 504081614), (80, 252040807)]