28205465

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1987}}^1$

素因数の和:2176

約数の個数: 16

約数和(自身を含む): 36070272

約数和(自身を除く): 7864807

約数列:

[1, 5, 17, 85, 167, 835, 1987, 2839, 9935, 14195, 33779, 168895, 331829, 1659145, 5641093, 28205465]

約数ペア:

[(1, 28205465), (5, 5641093), (17, 1659145), (85, 331829), (167, 168895), (835, 33779), (1987, 14195), (2839, 9935)]