256506180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2029}}^1$

素因数の和:2098

約数の個数: 144

約数和(自身を含む): 855328320

約数和(自身を除く): 598822140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 420, 430, 490, 516, 588, 602, 645, 735, 860, 903, 980, 1204, 1290, 1470, 1505, 1806, 2029, 2107, 2580, 2940, 3010, 3612, 4058, 4214, 4515, 6020, 6087, 6321, 8116, 8428, 9030, 10145, 10535, 12174, 12642, 14203, 18060, 20290, 21070, 24348, 25284, 28406, 30435, 31605, 40580, 42140, 42609, 56812, 60870, 63210, 71015, 85218, 87247, 99421, 121740, 126420, 142030, 170436, 174494, 198842, 213045, 261741, 284060, 298263, 348988, 397684, 426090, 436235, 497105, 523482, 596526, 610729, 852180, 872470, 994210, 1046964, 1193052, 1221458, 1308705, 1491315, 1744940, 1832187, 1988420, 2442916, 2617410, 2982630, 3053645, 3664374, 4275103, 5234820, 5965260, 6107290, 7328748, 8550206, 9160935, 12214580, 12825309, 17100412, 18321870, 21375515, 25650618, 36643740, 42751030, 51301236, 64126545, 85502060, 128253090, 256506180]

約数ペア:

[(1, 256506180), (2, 128253090), (3, 85502060), (4, 64126545), (5, 51301236), (6, 42751030), (7, 36643740), (10, 25650618), (12, 21375515), (14, 18321870), (15, 17100412), (20, 12825309), (21, 12214580), (28, 9160935), (30, 8550206), (35, 7328748), (42, 6107290), (43, 5965260), (49, 5234820), (60, 4275103), (70, 3664374), (84, 3053645), (86, 2982630), (98, 2617410), (105, 2442916), (129, 1988420), (140, 1832187), (147, 1744940), (172, 1491315), (196, 1308705), (210, 1221458), (215, 1193052), (245, 1046964), (258, 994210), (294, 872470), (301, 852180), (420, 610729), (430, 596526), (490, 523482), (516, 497105), (588, 436235), (602, 426090), (645, 397684), (735, 348988), (860, 298263), (903, 284060), (980, 261741), (1204, 213045), (1290, 198842), (1470, 174494), (1505, 170436), (1806, 142030), (2029, 126420), (2107, 121740), (2580, 99421), (2940, 87247), (3010, 85218), (3612, 71015), (4058, 63210), (4214, 60870), (4515, 56812), (6020, 42609), (6087, 42140), (6321, 40580), (8116, 31605), (8428, 30435), (9030, 28406), (10145, 25284), (10535, 24348), (12174, 21070), (12642, 20290), (14203, 18060)]