20806775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2609}}^1$

素因数の和:2659

約数の個数: 24

約数和(自身を含む): 29127600

約数和(自身を除く): 8320825

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2609, 7975, 13045, 28699, 65225, 75661, 143495, 378305, 717475, 832271, 1891525, 4161355, 20806775]

約数ペア:

[(1, 20806775), (5, 4161355), (11, 1891525), (25, 832271), (29, 717475), (55, 378305), (145, 143495), (275, 75661), (319, 65225), (725, 28699), (1595, 13045), (2609, 7975)]