201621040

素因数分解:

$2^4\times 5^1\times {\mathrm{2520263}}^1$

素因数の和:2520276

約数の個数: 20

約数和(自身を含む): 468769104

約数和(自身を除く): 267148064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2520263, 5040526, 10081052, 12601315, 20162104, 25202630, 40324208, 50405260, 100810520, 201621040]

約数ペア:

[(1, 201621040), (2, 100810520), (4, 50405260), (5, 40324208), (8, 25202630), (10, 20162104), (16, 12601315), (20, 10081052), (40, 5040526), (80, 2520263)]