20186440

素因数分解:

$2^3\times 5^1\times {\mathrm{504661}}^1$

素因数の和:504672

約数の個数: 16

約数和(自身を含む): 45419580

約数和(自身を除く): 25233140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504661, 1009322, 2018644, 2523305, 4037288, 5046610, 10093220, 20186440]

約数ペア:

[(1, 20186440), (2, 10093220), (4, 5046610), (5, 4037288), (8, 2523305), (10, 2018644), (20, 1009322), (40, 504661)]