68112220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3919}}^1$

素因数の和:4018

約数の個数: 48

約数和(自身を含む): 158054400

約数和(自身を除く): 89942180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 3919, 4345, 7838, 8690, 15676, 17380, 19595, 39190, 43109, 78380, 86218, 172436, 215545, 309601, 431090, 619202, 862180, 1238404, 1548005, 3096010, 3405611, 6192020, 6811222, 13622444, 17028055, 34056110, 68112220]

約数ペア:

[(1, 68112220), (2, 34056110), (4, 17028055), (5, 13622444), (10, 6811222), (11, 6192020), (20, 3405611), (22, 3096010), (44, 1548005), (55, 1238404), (79, 862180), (110, 619202), (158, 431090), (220, 309601), (316, 215545), (395, 172436), (790, 86218), (869, 78380), (1580, 43109), (1738, 39190), (3476, 19595), (3919, 17380), (4345, 15676), (7838, 8690)]