20418740

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1151}}^1$

素因数の和:2047

約数の個数: 24

約数和(自身を含む): 42964992

約数和(自身を除く): 22546252

約数列:

[1, 2, 4, 5, 10, 20, 887, 1151, 1774, 2302, 3548, 4435, 4604, 5755, 8870, 11510, 17740, 23020, 1020937, 2041874, 4083748, 5104685, 10209370, 20418740]

約数ペア:

[(1, 20418740), (2, 10209370), (4, 5104685), (5, 4083748), (10, 2041874), (20, 1020937), (887, 23020), (1151, 17740), (1774, 11510), (2302, 8870), (3548, 5755), (4435, 4604)]