25978264

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{569}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 52668000

約数和(自身を除く): 26689736

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 439, 569, 878, 1138, 1756, 2276, 3512, 4552, 5707, 7397, 11414, 14794, 22828, 29588, 45656, 59176, 249791, 499582, 999164, 1998328, 3247283, 6494566, 12989132, 25978264]

約数ペア:

[(1, 25978264), (2, 12989132), (4, 6494566), (8, 3247283), (13, 1998328), (26, 999164), (52, 499582), (104, 249791), (439, 59176), (569, 45656), (878, 29588), (1138, 22828), (1756, 14794), (2276, 11414), (3512, 7397), (4552, 5707)]