2021572180

素因数分解:

$2^2\times 5^1\times {\mathrm{101078609}}^1$

素因数の和:101078618

約数の個数: 12

約数和(自身を含む): 4245301620

約数和(自身を除く): 2223729440

約数列:

[1, 2, 4, 5, 10, 20, 101078609, 202157218, 404314436, 505393045, 1010786090, 2021572180]

約数ペア:

[(1, 2021572180), (2, 1010786090), (4, 505393045), (5, 404314436), (10, 202157218), (20, 101078609)]