289748975

素因数分解:

$5^2\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 364560000

約数和(自身を除く): 74811025

約数列:

[1, 5, 25, 139, 199, 419, 695, 995, 2095, 3475, 4975, 10475, 27661, 58241, 83381, 138305, 291205, 416905, 691525, 1456025, 2084525, 11589959, 57949795, 289748975]

約数ペア:

[(1, 289748975), (5, 57949795), (25, 11589959), (139, 2084525), (199, 1456025), (419, 691525), (695, 416905), (995, 291205), (2095, 138305), (3475, 83381), (4975, 58241), (10475, 27661)]