31287740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142217}}^1$

素因数の和:142237

約数の個数: 24

約数和(自身を含む): 71677872

約数和(自身を除く): 40390132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142217, 284434, 568868, 711085, 1422170, 1564387, 2844340, 3128774, 6257548, 7821935, 15643870, 31287740]

約数ペア:

[(1, 31287740), (2, 15643870), (4, 7821935), (5, 6257548), (10, 3128774), (11, 2844340), (20, 1564387), (22, 1422170), (44, 711085), (55, 568868), (110, 284434), (220, 142217)]