20882020

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1511}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 43944768

約数和(自身を除く): 23062748

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1511, 2764, 3022, 3455, 6044, 6910, 7555, 13820, 15110, 30220, 1044101, 2088202, 4176404, 5220505, 10441010, 20882020]

約数ペア:

[(1, 20882020), (2, 10441010), (4, 5220505), (5, 4176404), (10, 2088202), (20, 1044101), (691, 30220), (1382, 15110), (1511, 13820), (2764, 7555), (3022, 6910), (3455, 6044)]