20087328640

素因数分解:

$2^7\times 5^1\times {\mathrm{31386451}}^1$

素因数の和:31386470

約数の個数: 32

約数和(自身を含む): 48021271560

約数和(自身を除く): 27933942920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31386451, 62772902, 125545804, 156932255, 251091608, 313864510, 502183216, 627729020, 1004366432, 1255458040, 2008732864, 2510916080, 4017465728, 5021832160, 10043664320, 20087328640]

約数ペア:

[(1, 20087328640), (2, 10043664320), (4, 5021832160), (5, 4017465728), (8, 2510916080), (10, 2008732864), (16, 1255458040), (20, 1004366432), (32, 627729020), (40, 502183216), (64, 313864510), (80, 251091608), (128, 156932255), (160, 125545804), (320, 62772902), (640, 31386451)]