201581960

素因数分解:

$2^3\times 5^1\times {\mathrm{5039549}}^1$

素因数の和:5039560

約数の個数: 16

約数和(自身を含む): 453559500

約数和(自身を除く): 251977540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5039549, 10079098, 20158196, 25197745, 40316392, 50395490, 100790980, 201581960]

約数ペア:

[(1, 201581960), (2, 100790980), (4, 50395490), (5, 40316392), (8, 25197745), (10, 20158196), (20, 10079098), (40, 5039549)]