13138975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:367

約数の個数: 24

約数和(自身を含む): 17360000

約数和(自身を除く): 4221025

約数列:

[1, 5, 19, 25, 95, 139, 199, 475, 695, 995, 2641, 3475, 3781, 4975, 13205, 18905, 27661, 66025, 94525, 138305, 525559, 691525, 2627795, 13138975]

約数ペア:

[(1, 13138975), (5, 2627795), (19, 691525), (25, 525559), (95, 138305), (139, 94525), (199, 66025), (475, 27661), (695, 18905), (995, 13205), (2641, 4975), (3475, 3781)]