81216135

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1$

素因数の和:646

約数の個数: 128

約数和(自身を含む): 194181120

約数和(自身を除く): 112964985

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 27, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 135, 143, 165, 189, 195, 231, 273, 297, 315, 351, 385, 429, 455, 495, 585, 601, 693, 715, 819, 945, 1001, 1155, 1287, 1365, 1485, 1755, 1803, 2079, 2145, 2457, 3003, 3005, 3465, 3861, 4095, 4207, 5005, 5409, 6435, 6611, 7813, 9009, 9015, 10395, 12285, 12621, 15015, 16227, 19305, 19833, 21035, 23439, 27027, 27045, 33055, 37863, 39065, 45045, 46277, 54691, 59499, 63105, 70317, 81135, 85943, 99165, 113589, 117195, 135135, 138831, 164073, 178497, 189315, 210951, 231385, 257829, 273455, 297495, 351585, 416493, 429715, 492219, 567945, 601601, 694155, 773487, 820365, 892485, 1054755, 1249479, 1289145, 1476657, 1804803, 2082465, 2320461, 2461095, 3008005, 3867435, 5414409, 6247395, 7383285, 9024015, 11602305, 16243227, 27072045, 81216135]

約数ペア:

[(1, 81216135), (3, 27072045), (5, 16243227), (7, 11602305), (9, 9024015), (11, 7383285), (13, 6247395), (15, 5414409), (21, 3867435), (27, 3008005), (33, 2461095), (35, 2320461), (39, 2082465), (45, 1804803), (55, 1476657), (63, 1289145), (65, 1249479), (77, 1054755), (91, 892485), (99, 820365), (105, 773487), (117, 694155), (135, 601601), (143, 567945), (165, 492219), (189, 429715), (195, 416493), (231, 351585), (273, 297495), (297, 273455), (315, 257829), (351, 231385), (385, 210951), (429, 189315), (455, 178497), (495, 164073), (585, 138831), (601, 135135), (693, 117195), (715, 113589), (819, 99165), (945, 85943), (1001, 81135), (1155, 70317), (1287, 63105), (1365, 59499), (1485, 54691), (1755, 46277), (1803, 45045), (2079, 39065), (2145, 37863), (2457, 33055), (3003, 27045), (3005, 27027), (3465, 23439), (3861, 21035), (4095, 19833), (4207, 19305), (5005, 16227), (5409, 15015), (6435, 12621), (6611, 12285), (7813, 10395), (9009, 9015)]