20780176

素因数分解:

$2^4\times {\mathrm{601}}^1\times {\mathrm{2161}}^1$

素因数の和:2770

約数の個数: 20

約数和(自身を含む): 40347244

約数和(自身を除く): 19567068

約数列:

[1, 2, 4, 8, 16, 601, 1202, 2161, 2404, 4322, 4808, 8644, 9616, 17288, 34576, 1298761, 2597522, 5195044, 10390088, 20780176]

約数ペア:

[(1, 20780176), (2, 10390088), (4, 5195044), (8, 2597522), (16, 1298761), (601, 34576), (1202, 17288), (2161, 9616), (2404, 8644), (4322, 4808)]