1720278

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:99

約数の個数: 80

約数和(自身を含む): 4634784

約数和(自身を除く): 2914506

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 41, 42, 54, 63, 74, 81, 82, 111, 123, 126, 162, 189, 222, 246, 259, 287, 333, 369, 378, 518, 567, 574, 666, 738, 777, 861, 999, 1107, 1134, 1517, 1554, 1722, 1998, 2214, 2331, 2583, 2997, 3034, 3321, 4551, 4662, 5166, 5994, 6642, 6993, 7749, 9102, 10619, 13653, 13986, 15498, 20979, 21238, 23247, 27306, 31857, 40959, 41958, 46494, 63714, 81918, 95571, 122877, 191142, 245754, 286713, 573426, 860139, 1720278]

約数ペア:

[(1, 1720278), (2, 860139), (3, 573426), (6, 286713), (7, 245754), (9, 191142), (14, 122877), (18, 95571), (21, 81918), (27, 63714), (37, 46494), (41, 41958), (42, 40959), (54, 31857), (63, 27306), (74, 23247), (81, 21238), (82, 20979), (111, 15498), (123, 13986), (126, 13653), (162, 10619), (189, 9102), (222, 7749), (246, 6993), (259, 6642), (287, 5994), (333, 5166), (369, 4662), (378, 4551), (518, 3321), (567, 3034), (574, 2997), (666, 2583), (738, 2331), (777, 2214), (861, 1998), (999, 1722), (1107, 1554), (1134, 1517)]