51776720

素因数分解:

$2^4\times 5^1\times {\mathrm{647209}}^1$

素因数の和:647222

約数の個数: 20

約数和(自身を含む): 120381060

約数和(自身を除く): 68604340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647209, 1294418, 2588836, 3236045, 5177672, 6472090, 10355344, 12944180, 25888360, 51776720]

約数ペア:

[(1, 51776720), (2, 25888360), (4, 12944180), (5, 10355344), (8, 6472090), (10, 5177672), (16, 3236045), (20, 2588836), (40, 1294418), (80, 647209)]