20012794640

素因数分解:

$2^4\times 5^1\times {\mathrm{250159933}}^1$

素因数の和:250159946

約数の個数: 20

約数和(自身を含む): 46529747724

約数和(自身を除く): 26516953084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250159933, 500319866, 1000639732, 1250799665, 2001279464, 2501599330, 4002558928, 5003198660, 10006397320, 20012794640]

約数ペア:

[(1, 20012794640), (2, 10006397320), (4, 5003198660), (5, 4002558928), (8, 2501599330), (10, 2001279464), (16, 1250799665), (20, 1000639732), (40, 500319866), (80, 250159933)]