2561036620

素因数分解:

$2^2\times 5^1\times {\mathrm{11311}}^1\times {\mathrm{11321}}^1$

素因数の和:22641

約数の個数: 24

約数和(自身を含む): 5379127488

約数和(自身を除く): 2818090868

約数列:

[1, 2, 4, 5, 10, 20, 11311, 11321, 22622, 22642, 45244, 45284, 56555, 56605, 113110, 113210, 226220, 226420, 128051831, 256103662, 512207324, 640259155, 1280518310, 2561036620]

約数ペア:

[(1, 2561036620), (2, 1280518310), (4, 640259155), (5, 512207324), (10, 256103662), (20, 128051831), (11311, 226420), (11321, 226220), (22622, 113210), (22642, 113110), (45244, 56605), (45284, 56555)]