28205640405

素因数分解:

$3^2\times 5^1\times {\mathrm{626792009}}^1$

素因数の和:626792020

約数の個数: 12

約数和(自身を含む): 48889776780

約数和(自身を除く): 20684136375

約数列:

[1, 3, 5, 9, 15, 45, 626792009, 1880376027, 3133960045, 5641128081, 9401880135, 28205640405]

約数ペア:

[(1, 28205640405), (3, 9401880135), (5, 5641128081), (9, 3133960045), (15, 1880376027), (45, 626792009)]