128401765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{7591}}^1$

素因数の和:7812

約数の個数: 16

約数和(自身を含む): 163987200

約数和(自身を除く): 35585435

約数列:

[1, 5, 17, 85, 199, 995, 3383, 7591, 16915, 37955, 129047, 645235, 1510609, 7553045, 25680353, 128401765]

約数ペア:

[(1, 128401765), (5, 25680353), (17, 7553045), (85, 1510609), (199, 645235), (995, 129047), (3383, 37955), (7591, 16915)]