56431580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{68819}}^1$

素因数の和:68869

約数の個数: 24

約数和(自身を含む): 121398480

約数和(自身を除く): 64966900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 68819, 137638, 275276, 344095, 688190, 1376380, 2821579, 5643158, 11286316, 14107895, 28215790, 56431580]

約数ペア:

[(1, 56431580), (2, 28215790), (4, 14107895), (5, 11286316), (10, 5643158), (20, 2821579), (41, 1376380), (82, 688190), (164, 344095), (205, 275276), (410, 137638), (820, 68819)]