81405548

素因数分解:

$2^2\times 7^1\times {\mathrm{1193}}^1\times {\mathrm{2437}}^1$

素因数の和:3641

約数の個数: 24

約数和(自身を含む): 163014432

約数和(自身を除く): 81608884

約数列:

[1, 2, 4, 7, 14, 28, 1193, 2386, 2437, 4772, 4874, 8351, 9748, 16702, 17059, 33404, 34118, 68236, 2907341, 5814682, 11629364, 20351387, 40702774, 81405548]

約数ペア:

[(1, 81405548), (2, 40702774), (4, 20351387), (7, 11629364), (14, 5814682), (28, 2907341), (1193, 68236), (2386, 34118), (2437, 33404), (4772, 17059), (4874, 16702), (8351, 9748)]