55784840

素因数分解:

$2^3\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{1283}}^1$

素因数の和:2381

約数の個数: 32

約数和(自身を含む): 125729280

約数和(自身を除く): 69944440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1087, 1283, 2174, 2566, 4348, 5132, 5435, 6415, 8696, 10264, 10870, 12830, 21740, 25660, 43480, 51320, 1394621, 2789242, 5578484, 6973105, 11156968, 13946210, 27892420, 55784840]

約数ペア:

[(1, 55784840), (2, 27892420), (4, 13946210), (5, 11156968), (8, 6973105), (10, 5578484), (20, 2789242), (40, 1394621), (1087, 51320), (1283, 43480), (2174, 25660), (2566, 21740), (4348, 12830), (5132, 10870), (5435, 10264), (6415, 8696)]