161391985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{8537}}^1$

素因数の和:8760

約数の個数: 16

約数和(自身を含む): 204912000

約数和(自身を除く): 43520015

約数列:

[1, 5, 19, 95, 199, 995, 3781, 8537, 18905, 42685, 162203, 811015, 1698863, 8494315, 32278397, 161391985]

約数ペア:

[(1, 161391985), (5, 32278397), (19, 8494315), (95, 1698863), (199, 811015), (995, 162203), (3781, 42685), (8537, 18905)]