20022740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10321}}^1$

素因数の和:10427

約数の個数: 24

約数和(自身を含む): 42485352

約数和(自身を除く): 22462612

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10321, 20642, 41284, 51605, 103210, 206420, 1001137, 2002274, 4004548, 5005685, 10011370, 20022740]

約数ペア:

[(1, 20022740), (2, 10011370), (4, 5005685), (5, 4004548), (10, 2002274), (20, 1001137), (97, 206420), (194, 103210), (388, 51605), (485, 41284), (970, 20642), (1940, 10321)]