205280360

素因数分解:

$2^3\times 5^1\times {\mathrm{5132009}}^1$

素因数の和:5132020

約数の個数: 16

約数和(自身を含む): 461880900

約数和(自身を除く): 256600540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5132009, 10264018, 20528036, 25660045, 41056072, 51320090, 102640180, 205280360]

約数ペア:

[(1, 205280360), (2, 102640180), (4, 51320090), (5, 41056072), (8, 25660045), (10, 20528036), (20, 10264018), (40, 5132009)]