128208025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 181113408

約数和(自身を除く): 52905383

約数列:

[1, 5, 11, 25, 41, 55, 83, 137, 205, 275, 415, 451, 685, 913, 1025, 1507, 2075, 2255, 3403, 3425, 4565, 5617, 7535, 11275, 11371, 17015, 22825, 28085, 37433, 37675, 56855, 61787, 85075, 125081, 140425, 187165, 284275, 308935, 466211, 625405, 935825, 1544675, 2331055, 3127025, 5128321, 11655275, 25641605, 128208025]

約数ペア:

[(1, 128208025), (5, 25641605), (11, 11655275), (25, 5128321), (41, 3127025), (55, 2331055), (83, 1544675), (137, 935825), (205, 625405), (275, 466211), (415, 308935), (451, 284275), (685, 187165), (913, 140425), (1025, 125081), (1507, 85075), (2075, 61787), (2255, 56855), (3403, 37675), (3425, 37433), (4565, 28085), (5617, 22825), (7535, 17015), (11275, 11371)]