7921195

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 10080000

約数和(自身を除く): 2158805

約数列:

[1, 5, 19, 95, 199, 419, 995, 2095, 3781, 7961, 18905, 39805, 83381, 416905, 1584239, 7921195]

約数ペア:

[(1, 7921195), (5, 1584239), (19, 416905), (95, 83381), (199, 39805), (419, 18905), (995, 7961), (2095, 3781)]