12118105

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 15408000

約数和(自身を除く): 3289895

約数列:

[1, 5, 19, 95, 199, 641, 995, 3205, 3781, 12179, 18905, 60895, 127559, 637795, 2423621, 12118105]

約数ペア:

[(1, 12118105), (5, 2423621), (19, 637795), (95, 127559), (199, 60895), (641, 18905), (995, 12179), (3205, 3781)]