2016390025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{14737}}^1$

素因数の和:15181

約数の個数: 24

約数和(自身を含む): 2699235224

約数和(自身を除く): 682845199

約数列:

[1, 5, 13, 25, 65, 325, 421, 2105, 5473, 10525, 14737, 27365, 73685, 136825, 191581, 368425, 957905, 4789525, 6204277, 31021385, 80655601, 155106925, 403278005, 2016390025]

約数ペア:

[(1, 2016390025), (5, 403278005), (13, 155106925), (25, 80655601), (65, 31021385), (325, 6204277), (421, 4789525), (2105, 957905), (5473, 368425), (10525, 191581), (14737, 136825), (27365, 73685)]