81512165

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 115397376

約数和(自身を除く): 33885211

約数列:

[1, 5, 7, 35, 61, 73, 305, 365, 427, 511, 523, 2135, 2555, 2615, 3661, 4453, 18305, 22265, 31171, 31903, 38179, 155855, 159515, 190895, 223321, 267253, 1116605, 1336265, 2328919, 11644595, 16302433, 81512165]

約数ペア:

[(1, 81512165), (5, 16302433), (7, 11644595), (35, 2328919), (61, 1336265), (73, 1116605), (305, 267253), (365, 223321), (427, 190895), (511, 159515), (523, 155855), (2135, 38179), (2555, 31903), (2615, 31171), (3661, 22265), (4453, 18305)]