861962420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3918011}}^1$

素因数の和:3918031

約数の個数: 24

約数和(自身を含む): 1974678048

約数和(自身を除く): 1112715628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3918011, 7836022, 15672044, 19590055, 39180110, 43098121, 78360220, 86196242, 172392484, 215490605, 430981210, 861962420]

約数ペア:

[(1, 861962420), (2, 430981210), (4, 215490605), (5, 172392484), (10, 86196242), (11, 78360220), (20, 43098121), (22, 39180110), (44, 19590055), (55, 15672044), (110, 7836022), (220, 3918011)]