128440809

素因数分解:

$3^5\times 7^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 237619200

約数和(自身を除く): 109178391

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 67, 69, 81, 147, 161, 189, 201, 207, 243, 343, 441, 469, 483, 567, 603, 621, 1029, 1127, 1323, 1407, 1449, 1541, 1701, 1809, 1863, 3087, 3283, 3381, 3969, 4221, 4347, 4623, 5427, 5589, 7889, 9261, 9849, 10143, 10787, 11907, 12663, 13041, 13869, 16281, 22981, 23667, 27783, 29547, 30429, 32361, 37989, 39123, 41607, 68943, 71001, 75509, 83349, 88641, 91287, 97083, 113967, 124821, 206829, 213003, 226527, 265923, 273861, 291249, 374463, 528563, 620487, 639009, 679581, 797769, 873747, 1585689, 1861461, 1917027, 2038743, 2621241, 4757067, 5584383, 6116229, 14271201, 18348687, 42813603, 128440809]

約数ペア:

[(1, 128440809), (3, 42813603), (7, 18348687), (9, 14271201), (21, 6116229), (23, 5584383), (27, 4757067), (49, 2621241), (63, 2038743), (67, 1917027), (69, 1861461), (81, 1585689), (147, 873747), (161, 797769), (189, 679581), (201, 639009), (207, 620487), (243, 528563), (343, 374463), (441, 291249), (469, 273861), (483, 265923), (567, 226527), (603, 213003), (621, 206829), (1029, 124821), (1127, 113967), (1323, 97083), (1407, 91287), (1449, 88641), (1541, 83349), (1701, 75509), (1809, 71001), (1863, 68943), (3087, 41607), (3283, 39123), (3381, 37989), (3969, 32361), (4221, 30429), (4347, 29547), (4623, 27783), (5427, 23667), (5589, 22981), (7889, 16281), (9261, 13869), (9849, 13041), (10143, 12663), (10787, 11907)]