87178915

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{2137}}^1$

素因数の和:2382

約数の個数: 16

約数和(自身を含む): 107755200

約数和(自身を除く): 20576285

約数列:

[1, 5, 41, 199, 205, 995, 2137, 8159, 10685, 40795, 87617, 425263, 438085, 2126315, 17435783, 87178915]

約数ペア:

[(1, 87178915), (5, 17435783), (41, 2126315), (199, 438085), (205, 425263), (995, 87617), (2137, 40795), (8159, 10685)]