66213220

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{2707}}^1$

素因数の和:3939

約数の個数: 24

約数和(自身を含む): 139212864

約数和(自身を除く): 72999644

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 2707, 4892, 5414, 6115, 10828, 12230, 13535, 24460, 27070, 54140, 3310661, 6621322, 13242644, 16553305, 33106610, 66213220]

約数ペア:

[(1, 66213220), (2, 33106610), (4, 16553305), (5, 13242644), (10, 6621322), (20, 3310661), (1223, 54140), (2446, 27070), (2707, 24460), (4892, 13535), (5414, 12230), (6115, 10828)]