20458195

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{709}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 25560000

約数和(自身を除く): 5101805

約数列:

[1, 5, 29, 145, 199, 709, 995, 3545, 5771, 20561, 28855, 102805, 141091, 705455, 4091639, 20458195]

約数ペア:

[(1, 20458195), (5, 4091639), (29, 705455), (145, 141091), (199, 102805), (709, 28855), (995, 20561), (3545, 5771)]