40809700180

素因数分解:

$2^2\times 5^1\times {\mathrm{2040485009}}^1$

素因数の和:2040485018

約数の個数: 12

約数和(自身を含む): 85700370420

約数和(自身を除く): 44890670240

約数列:

[1, 2, 4, 5, 10, 20, 2040485009, 4080970018, 8161940036, 10202425045, 20404850090, 40809700180]

約数ペア:

[(1, 40809700180), (2, 20404850090), (4, 10202425045), (5, 8161940036), (10, 4080970018), (20, 2040485009)]