18800720

素因数分解:

$2^4\times 5^1\times {\mathrm{235009}}^1$

素因数の和:235022

約数の個数: 20

約数和(自身を含む): 43711860

約数和(自身を除く): 24911140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235009, 470018, 940036, 1175045, 1880072, 2350090, 3760144, 4700180, 9400360, 18800720]

約数ペア:

[(1, 18800720), (2, 9400360), (4, 4700180), (5, 3760144), (8, 2350090), (10, 1880072), (16, 1175045), (20, 940036), (40, 470018), (80, 235009)]