81326574

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:275

約数の個数: 144

約数和(自身を含む): 226212480

約数和(自身を除く): 144885906

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 23, 38, 42, 46, 49, 57, 63, 69, 98, 114, 126, 133, 138, 147, 161, 171, 207, 211, 266, 294, 322, 342, 399, 414, 422, 437, 441, 483, 633, 798, 874, 882, 931, 966, 1127, 1197, 1266, 1311, 1449, 1477, 1862, 1899, 2254, 2394, 2622, 2793, 2898, 2954, 3059, 3381, 3798, 3933, 4009, 4431, 4853, 5586, 6118, 6762, 7866, 8018, 8379, 8862, 9177, 9706, 10143, 10339, 12027, 13293, 14559, 16758, 18354, 20286, 20678, 21413, 24054, 26586, 27531, 28063, 29118, 31017, 33971, 36081, 42826, 43677, 55062, 56126, 62034, 64239, 67942, 72162, 84189, 87354, 92207, 93051, 101913, 128478, 168378, 184414, 186102, 192717, 196441, 203826, 237797, 252567, 276621, 305739, 385434, 392882, 475594, 505134, 553242, 589323, 611478, 645449, 713391, 829863, 1178646, 1290898, 1426782, 1659726, 1767969, 1936347, 2140173, 3535938, 3872694, 4280346, 4518143, 5809041, 9036286, 11618082, 13554429, 27108858, 40663287, 81326574]

約数ペア:

[(1, 81326574), (2, 40663287), (3, 27108858), (6, 13554429), (7, 11618082), (9, 9036286), (14, 5809041), (18, 4518143), (19, 4280346), (21, 3872694), (23, 3535938), (38, 2140173), (42, 1936347), (46, 1767969), (49, 1659726), (57, 1426782), (63, 1290898), (69, 1178646), (98, 829863), (114, 713391), (126, 645449), (133, 611478), (138, 589323), (147, 553242), (161, 505134), (171, 475594), (207, 392882), (211, 385434), (266, 305739), (294, 276621), (322, 252567), (342, 237797), (399, 203826), (414, 196441), (422, 192717), (437, 186102), (441, 184414), (483, 168378), (633, 128478), (798, 101913), (874, 93051), (882, 92207), (931, 87354), (966, 84189), (1127, 72162), (1197, 67942), (1266, 64239), (1311, 62034), (1449, 56126), (1477, 55062), (1862, 43677), (1899, 42826), (2254, 36081), (2394, 33971), (2622, 31017), (2793, 29118), (2898, 28063), (2954, 27531), (3059, 26586), (3381, 24054), (3798, 21413), (3933, 20678), (4009, 20286), (4431, 18354), (4853, 16758), (5586, 14559), (6118, 13293), (6762, 12027), (7866, 10339), (8018, 10143), (8379, 9706), (8862, 9177)]