256455612

素因数分解:

$2^2\times 3^3\times 7^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 240

約数和(自身を含む): 828199680

約数和(自身を除く): 571744068

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 43, 46, 49, 54, 63, 69, 84, 86, 92, 98, 108, 126, 129, 138, 147, 161, 172, 189, 196, 207, 252, 258, 276, 294, 301, 322, 343, 378, 387, 414, 441, 483, 516, 588, 602, 621, 644, 686, 756, 774, 828, 882, 903, 966, 989, 1029, 1127, 1161, 1204, 1242, 1323, 1372, 1449, 1548, 1764, 1806, 1932, 1978, 2058, 2107, 2254, 2322, 2401, 2484, 2646, 2709, 2898, 2967, 3087, 3381, 3612, 3956, 4116, 4214, 4347, 4508, 4644, 4802, 5292, 5418, 5796, 5934, 6174, 6321, 6762, 6923, 7203, 7889, 8127, 8428, 8694, 8901, 9261, 9604, 10143, 10836, 11868, 12348, 12642, 13524, 13846, 14406, 14749, 15778, 16254, 17388, 17802, 18522, 18963, 20286, 20769, 21609, 23667, 25284, 26703, 27692, 28812, 29498, 30429, 31556, 32508, 35604, 37044, 37926, 40572, 41538, 43218, 44247, 47334, 48461, 53406, 55223, 56889, 58996, 60858, 62307, 64827, 71001, 75852, 83076, 86436, 88494, 94668, 96922, 103243, 106812, 110446, 113778, 121716, 124614, 129654, 132741, 142002, 145383, 165669, 176988, 186921, 193844, 206486, 213003, 220892, 227556, 249228, 259308, 265482, 284004, 290766, 309729, 331338, 339227, 373842, 398223, 412972, 426006, 436149, 497007, 530964, 581532, 619458, 662676, 678454, 747684, 796446, 852012, 872298, 929187, 994014, 1017681, 1238916, 1308447, 1356908, 1491021, 1592892, 1744596, 1858374, 1988028, 2035362, 2374589, 2616894, 2787561, 2982042, 3053043, 3716748, 4070724, 4749178, 5233788, 5575122, 5964084, 6106086, 7123767, 9159129, 9498356, 11150244, 12212172, 14247534, 18318258, 21371301, 28495068, 36636516, 42742602, 64113903, 85485204, 128227806, 256455612]

約数ペア:

[(1, 256455612), (2, 128227806), (3, 85485204), (4, 64113903), (6, 42742602), (7, 36636516), (9, 28495068), (12, 21371301), (14, 18318258), (18, 14247534), (21, 12212172), (23, 11150244), (27, 9498356), (28, 9159129), (36, 7123767), (42, 6106086), (43, 5964084), (46, 5575122), (49, 5233788), (54, 4749178), (63, 4070724), (69, 3716748), (84, 3053043), (86, 2982042), (92, 2787561), (98, 2616894), (108, 2374589), (126, 2035362), (129, 1988028), (138, 1858374), (147, 1744596), (161, 1592892), (172, 1491021), (189, 1356908), (196, 1308447), (207, 1238916), (252, 1017681), (258, 994014), (276, 929187), (294, 872298), (301, 852012), (322, 796446), (343, 747684), (378, 678454), (387, 662676), (414, 619458), (441, 581532), (483, 530964), (516, 497007), (588, 436149), (602, 426006), (621, 412972), (644, 398223), (686, 373842), (756, 339227), (774, 331338), (828, 309729), (882, 290766), (903, 284004), (966, 265482), (989, 259308), (1029, 249228), (1127, 227556), (1161, 220892), (1204, 213003), (1242, 206486), (1323, 193844), (1372, 186921), (1449, 176988), (1548, 165669), (1764, 145383), (1806, 142002), (1932, 132741), (1978, 129654), (2058, 124614), (2107, 121716), (2254, 113778), (2322, 110446), (2401, 106812), (2484, 103243), (2646, 96922), (2709, 94668), (2898, 88494), (2967, 86436), (3087, 83076), (3381, 75852), (3612, 71001), (3956, 64827), (4116, 62307), (4214, 60858), (4347, 58996), (4508, 56889), (4644, 55223), (4802, 53406), (5292, 48461), (5418, 47334), (5796, 44247), (5934, 43218), (6174, 41538), (6321, 40572), (6762, 37926), (6923, 37044), (7203, 35604), (7889, 32508), (8127, 31556), (8428, 30429), (8694, 29498), (8901, 28812), (9261, 27692), (9604, 26703), (10143, 25284), (10836, 23667), (11868, 21609), (12348, 20769), (12642, 20286), (13524, 18963), (13846, 18522), (14406, 17802), (14749, 17388), (15778, 16254)]