20865080

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1453}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 47109600

約数和(自身を除く): 26244520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1453, 1795, 2872, 2906, 3590, 5812, 7180, 7265, 11624, 14360, 14530, 29060, 58120, 521627, 1043254, 2086508, 2608135, 4173016, 5216270, 10432540, 20865080]

約数ペア:

[(1, 20865080), (2, 10432540), (4, 5216270), (5, 4173016), (8, 2608135), (10, 2086508), (20, 1043254), (40, 521627), (359, 58120), (718, 29060), (1436, 14530), (1453, 14360), (1795, 11624), (2872, 7265), (2906, 7180), (3590, 5812)]