188840180

素因数分解:

$2^2\times 5^1\times {\mathrm{9442009}}^1$

素因数の和:9442018

約数の個数: 12

約数和(自身を含む): 396564420

約数和(自身を除く): 207724240

約数列:

[1, 2, 4, 5, 10, 20, 9442009, 18884018, 37768036, 47210045, 94420090, 188840180]

約数ペア:

[(1, 188840180), (2, 94420090), (4, 47210045), (5, 37768036), (10, 18884018), (20, 9442009)]