20188580

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8933}}^1$

素因数の和:9055

約数の個数: 24

約数和(自身を含む): 42775992

約数和(自身を除く): 22587412

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8933, 17866, 35732, 44665, 89330, 178660, 1009429, 2018858, 4037716, 5047145, 10094290, 20188580]

約数ペア:

[(1, 20188580), (2, 10094290), (4, 5047145), (5, 4037716), (10, 2018858), (20, 1009429), (113, 178660), (226, 89330), (452, 44665), (565, 35732), (1130, 17866), (2260, 8933)]