205502020

素因数分解:

$2^2\times 5^1\times {\mathrm{2719}}^1\times {\mathrm{3779}}^1$

素因数の和:6507

約数の個数: 24

約数和(自身を含む): 431827200

約数和(自身を除く): 226325180

約数列:

[1, 2, 4, 5, 10, 20, 2719, 3779, 5438, 7558, 10876, 13595, 15116, 18895, 27190, 37790, 54380, 75580, 10275101, 20550202, 41100404, 51375505, 102751010, 205502020]

約数ペア:

[(1, 205502020), (2, 102751010), (4, 51375505), (5, 41100404), (10, 20550202), (20, 10275101), (2719, 75580), (3779, 54380), (5438, 37790), (7558, 27190), (10876, 18895), (13595, 15116)]