39605975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 52080000

約数和(自身を除く): 12474025

約数列:

[1, 5, 19, 25, 95, 199, 419, 475, 995, 2095, 3781, 4975, 7961, 10475, 18905, 39805, 83381, 94525, 199025, 416905, 1584239, 2084525, 7921195, 39605975]

約数ペア:

[(1, 39605975), (5, 7921195), (19, 2084525), (25, 1584239), (95, 416905), (199, 199025), (419, 94525), (475, 83381), (995, 39805), (2095, 18905), (3781, 10475), (4975, 7961)]