40128040

素因数分解:

$2^3\times 5^1\times {\mathrm{1003201}}^1$

素因数の和:1003212

約数の個数: 16

約数和(自身を含む): 90288180

約数和(自身を除く): 50160140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1003201, 2006402, 4012804, 5016005, 8025608, 10032010, 20064020, 40128040]

約数ペア:

[(1, 40128040), (2, 20064020), (4, 10032010), (5, 8025608), (8, 5016005), (10, 4012804), (20, 2006402), (40, 1003201)]