20625140

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2237}}^1$

素因数の和:2707

約数の個数: 24

約数和(自身を含む): 43426152

約数和(自身を除く): 22801012

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2237, 2305, 4474, 4610, 8948, 9220, 11185, 22370, 44740, 1031257, 2062514, 4125028, 5156285, 10312570, 20625140]

約数ペア:

[(1, 20625140), (2, 10312570), (4, 5156285), (5, 4125028), (10, 2062514), (20, 1031257), (461, 44740), (922, 22370), (1844, 11185), (2237, 9220), (2305, 8948), (4474, 4610)]