31284340

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{1279}}^1$

素因数の和:2511

約数の個数: 24

約数和(自身を含む): 65802240

約数和(自身を除く): 34517900

約数列:

[1, 2, 4, 5, 10, 20, 1223, 1279, 2446, 2558, 4892, 5116, 6115, 6395, 12230, 12790, 24460, 25580, 1564217, 3128434, 6256868, 7821085, 15642170, 31284340]

約数ペア:

[(1, 31284340), (2, 15642170), (4, 7821085), (5, 6256868), (10, 3128434), (20, 1564217), (1223, 25580), (1279, 24460), (2446, 12790), (2558, 12230), (4892, 6395), (5116, 6115)]