80537156

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20693}}^1$

素因数の和:20843

約数の個数: 24

約数和(自身を含む): 162240960

約数和(自身を除く): 81703804

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 20693, 41386, 82772, 144851, 289702, 579404, 2876327, 5752654, 11505308, 20134289, 40268578, 80537156]

約数ペア:

[(1, 80537156), (2, 40268578), (4, 20134289), (7, 11505308), (14, 5752654), (28, 2876327), (139, 579404), (278, 289702), (556, 144851), (973, 82772), (1946, 41386), (3892, 20693)]