40399985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2137}}^1$

素因数の和:2360

約数の個数: 16

約数和(自身を含む): 51312000

約数和(自身を除く): 10912015

約数列:

[1, 5, 19, 95, 199, 995, 2137, 3781, 10685, 18905, 40603, 203015, 425263, 2126315, 8079997, 40399985]

約数ペア:

[(1, 40399985), (5, 8079997), (19, 2126315), (95, 425263), (199, 203015), (995, 40603), (2137, 18905), (3781, 10685)]