81666288

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:188

約数の個数: 180

約数和(自身を含む): 259419160

約数和(自身を除く): 177752872

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 43, 44, 48, 66, 72, 86, 88, 99, 109, 121, 129, 132, 144, 172, 176, 198, 218, 242, 258, 264, 327, 344, 363, 387, 396, 436, 473, 484, 516, 528, 654, 688, 726, 774, 792, 872, 946, 968, 981, 1032, 1089, 1199, 1308, 1419, 1452, 1548, 1584, 1744, 1892, 1936, 1962, 2064, 2178, 2398, 2616, 2838, 2904, 3096, 3597, 3784, 3924, 4257, 4356, 4687, 4796, 5203, 5232, 5676, 5808, 6192, 7194, 7568, 7848, 8514, 8712, 9374, 9592, 10406, 10791, 11352, 13189, 14061, 14388, 15609, 15696, 17028, 17424, 18748, 19184, 20812, 21582, 22704, 26378, 28122, 28776, 31218, 34056, 37496, 39567, 41624, 42183, 43164, 46827, 51557, 52756, 56244, 57552, 62436, 68112, 74992, 79134, 83248, 84366, 86328, 93654, 103114, 105512, 112488, 118701, 124872, 154671, 158268, 168732, 172656, 187308, 206228, 211024, 224976, 237402, 249744, 309342, 316536, 337464, 374616, 412456, 464013, 474804, 567127, 618684, 633072, 674928, 749232, 824912, 928026, 949608, 1134254, 1237368, 1701381, 1856052, 1899216, 2268508, 2474736, 3402762, 3712104, 4537016, 5104143, 6805524, 7424208, 9074032, 10208286, 13611048, 20416572, 27222096, 40833144, 81666288]

約数ペア:

[(1, 81666288), (2, 40833144), (3, 27222096), (4, 20416572), (6, 13611048), (8, 10208286), (9, 9074032), (11, 7424208), (12, 6805524), (16, 5104143), (18, 4537016), (22, 3712104), (24, 3402762), (33, 2474736), (36, 2268508), (43, 1899216), (44, 1856052), (48, 1701381), (66, 1237368), (72, 1134254), (86, 949608), (88, 928026), (99, 824912), (109, 749232), (121, 674928), (129, 633072), (132, 618684), (144, 567127), (172, 474804), (176, 464013), (198, 412456), (218, 374616), (242, 337464), (258, 316536), (264, 309342), (327, 249744), (344, 237402), (363, 224976), (387, 211024), (396, 206228), (436, 187308), (473, 172656), (484, 168732), (516, 158268), (528, 154671), (654, 124872), (688, 118701), (726, 112488), (774, 105512), (792, 103114), (872, 93654), (946, 86328), (968, 84366), (981, 83248), (1032, 79134), (1089, 74992), (1199, 68112), (1308, 62436), (1419, 57552), (1452, 56244), (1548, 52756), (1584, 51557), (1744, 46827), (1892, 43164), (1936, 42183), (1962, 41624), (2064, 39567), (2178, 37496), (2398, 34056), (2616, 31218), (2838, 28776), (2904, 28122), (3096, 26378), (3597, 22704), (3784, 21582), (3924, 20812), (4257, 19184), (4356, 18748), (4687, 17424), (4796, 17028), (5203, 15696), (5232, 15609), (5676, 14388), (5808, 14061), (6192, 13189), (7194, 11352), (7568, 10791), (7848, 10406), (8514, 9592), (8712, 9374)]