20158220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13807}}^1$

素因数の和:13889

約数の個数: 24

約数和(自身を含む): 42915264

約数和(自身を除く): 22757044

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13807, 27614, 55228, 69035, 138070, 276140, 1007911, 2015822, 4031644, 5039555, 10079110, 20158220]

約数ペア:

[(1, 20158220), (2, 10079110), (4, 5039555), (5, 4031644), (10, 2015822), (20, 1007911), (73, 276140), (146, 138070), (292, 69035), (365, 55228), (730, 27614), (1460, 13807)]