66169820

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{2161}}^1$

素因数の和:3701

約数の個数: 24

約数和(自身を含む): 139111728

約数和(自身を除く): 72941908

約数列:

[1, 2, 4, 5, 10, 20, 1531, 2161, 3062, 4322, 6124, 7655, 8644, 10805, 15310, 21610, 30620, 43220, 3308491, 6616982, 13233964, 16542455, 33084910, 66169820]

約数ペア:

[(1, 66169820), (2, 33084910), (4, 16542455), (5, 13233964), (10, 6616982), (20, 3308491), (1531, 43220), (2161, 30620), (3062, 21610), (4322, 15310), (6124, 10805), (7655, 8644)]