2016208025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{477209}}^1$

素因数の和:477245

約数の個数: 18

約数和(自身を含む): 2707212330

約数和(自身を除く): 691004305

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 477209, 2386045, 6203717, 11930225, 31018585, 80648321, 155092925, 403241605, 2016208025]

約数ペア:

[(1, 2016208025), (5, 403241605), (13, 155092925), (25, 80648321), (65, 31018585), (169, 11930225), (325, 6203717), (845, 2386045), (4225, 477209)]