81497878

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 171383040

約数和(自身を除く): 89885162

約数列:

[1, 2, 7, 11, 14, 19, 22, 23, 38, 46, 49, 77, 98, 133, 154, 161, 173, 209, 253, 266, 322, 346, 418, 437, 506, 539, 874, 931, 1078, 1127, 1211, 1463, 1771, 1862, 1903, 2254, 2422, 2926, 3059, 3287, 3542, 3806, 3979, 4807, 6118, 6574, 7958, 8477, 9614, 10241, 12397, 13321, 16954, 20482, 21413, 23009, 24794, 26642, 27853, 33649, 36157, 42826, 43769, 46018, 55706, 67298, 72314, 75601, 87538, 93247, 151202, 161063, 186494, 194971, 235543, 253099, 306383, 322126, 389942, 471086, 506198, 529207, 612766, 831611, 1058414, 1663222, 1771693, 2144681, 3543386, 3704449, 4289362, 5821277, 7408898, 11642554, 40748939, 81497878]

約数ペア:

[(1, 81497878), (2, 40748939), (7, 11642554), (11, 7408898), (14, 5821277), (19, 4289362), (22, 3704449), (23, 3543386), (38, 2144681), (46, 1771693), (49, 1663222), (77, 1058414), (98, 831611), (133, 612766), (154, 529207), (161, 506198), (173, 471086), (209, 389942), (253, 322126), (266, 306383), (322, 253099), (346, 235543), (418, 194971), (437, 186494), (506, 161063), (539, 151202), (874, 93247), (931, 87538), (1078, 75601), (1127, 72314), (1211, 67298), (1463, 55706), (1771, 46018), (1862, 43769), (1903, 42826), (2254, 36157), (2422, 33649), (2926, 27853), (3059, 26642), (3287, 24794), (3542, 23009), (3806, 21413), (3979, 20482), (4807, 16954), (6118, 13321), (6574, 12397), (7958, 10241), (8477, 9614)]