890993360

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{21377}}^1$

素因数の和:21911

約数の個数: 40

約数和(自身を含む): 2075632776

約数和(自身を除く): 1184639416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 2084, 2605, 4168, 5210, 8336, 10420, 20840, 21377, 41680, 42754, 85508, 106885, 171016, 213770, 342032, 427540, 855080, 1710160, 11137417, 22274834, 44549668, 55687085, 89099336, 111374170, 178198672, 222748340, 445496680, 890993360]

約数ペア:

[(1, 890993360), (2, 445496680), (4, 222748340), (5, 178198672), (8, 111374170), (10, 89099336), (16, 55687085), (20, 44549668), (40, 22274834), (80, 11137417), (521, 1710160), (1042, 855080), (2084, 427540), (2605, 342032), (4168, 213770), (5210, 171016), (8336, 106885), (10420, 85508), (20840, 42754), (21377, 41680)]