40128640

素因数分解:

$2^7\times 5^1\times {\mathrm{62701}}^1$

素因数の和:62720

約数の個数: 32

約数和(自身を含む): 95934060

約数和(自身を除く): 55805420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 62701, 125402, 250804, 313505, 501608, 627010, 1003216, 1254020, 2006432, 2508040, 4012864, 5016080, 8025728, 10032160, 20064320, 40128640]

約数ペア:

[(1, 40128640), (2, 20064320), (4, 10032160), (5, 8025728), (8, 5016080), (10, 4012864), (16, 2508040), (20, 2006432), (32, 1254020), (40, 1003216), (64, 627010), (80, 501608), (128, 313505), (160, 250804), (320, 125402), (640, 62701)]