256449726

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:105

約数の個数: 240

約数和(自身を含む): 717433200

約数和(自身を除く): 460983474

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 19, 26, 27, 29, 34, 38, 39, 51, 54, 57, 58, 78, 81, 87, 102, 114, 117, 153, 162, 169, 171, 174, 221, 234, 247, 261, 306, 323, 338, 342, 351, 377, 442, 459, 493, 494, 507, 513, 522, 551, 646, 663, 702, 741, 754, 783, 918, 969, 986, 1014, 1026, 1053, 1102, 1131, 1326, 1377, 1479, 1482, 1521, 1539, 1566, 1653, 1938, 1989, 2106, 2223, 2262, 2349, 2754, 2873, 2907, 2958, 3042, 3078, 3211, 3306, 3393, 3978, 4199, 4437, 4446, 4563, 4698, 4901, 4959, 5746, 5814, 5967, 6409, 6422, 6669, 6786, 7163, 8398, 8619, 8721, 8874, 9126, 9367, 9633, 9802, 9918, 10179, 11934, 12597, 12818, 13311, 13338, 13689, 14326, 14703, 14877, 17238, 17442, 17901, 18734, 19227, 19266, 20007, 20358, 21489, 25194, 25857, 26163, 26622, 27378, 28101, 28899, 29406, 29754, 30537, 35802, 37791, 38454, 39933, 40014, 42978, 44109, 44631, 51714, 52326, 54587, 56202, 57681, 57798, 61074, 64467, 75582, 77571, 79866, 83317, 84303, 86697, 88218, 89262, 93119, 109174, 113373, 115362, 121771, 128934, 132327, 155142, 163761, 166634, 168606, 173043, 173394, 186238, 193401, 226746, 232713, 243542, 249951, 252909, 260091, 264654, 279357, 327522, 340119, 346086, 365313, 386802, 396981, 465426, 491283, 499902, 505818, 519129, 520182, 558714, 580203, 680238, 730626, 749853, 758727, 793962, 838071, 982566, 1038258, 1095939, 1160406, 1473849, 1499706, 1517454, 1583023, 1676142, 2191878, 2249559, 2514213, 2947698, 3166046, 3287817, 4421547, 4499118, 4749069, 5028426, 6575634, 6748677, 7542639, 8843094, 9498138, 9863451, 13497354, 14247207, 15085278, 19726902, 28494414, 42741621, 85483242, 128224863, 256449726]

約数ペア:

[(1, 256449726), (2, 128224863), (3, 85483242), (6, 42741621), (9, 28494414), (13, 19726902), (17, 15085278), (18, 14247207), (19, 13497354), (26, 9863451), (27, 9498138), (29, 8843094), (34, 7542639), (38, 6748677), (39, 6575634), (51, 5028426), (54, 4749069), (57, 4499118), (58, 4421547), (78, 3287817), (81, 3166046), (87, 2947698), (102, 2514213), (114, 2249559), (117, 2191878), (153, 1676142), (162, 1583023), (169, 1517454), (171, 1499706), (174, 1473849), (221, 1160406), (234, 1095939), (247, 1038258), (261, 982566), (306, 838071), (323, 793962), (338, 758727), (342, 749853), (351, 730626), (377, 680238), (442, 580203), (459, 558714), (493, 520182), (494, 519129), (507, 505818), (513, 499902), (522, 491283), (551, 465426), (646, 396981), (663, 386802), (702, 365313), (741, 346086), (754, 340119), (783, 327522), (918, 279357), (969, 264654), (986, 260091), (1014, 252909), (1026, 249951), (1053, 243542), (1102, 232713), (1131, 226746), (1326, 193401), (1377, 186238), (1479, 173394), (1482, 173043), (1521, 168606), (1539, 166634), (1566, 163761), (1653, 155142), (1938, 132327), (1989, 128934), (2106, 121771), (2223, 115362), (2262, 113373), (2349, 109174), (2754, 93119), (2873, 89262), (2907, 88218), (2958, 86697), (3042, 84303), (3078, 83317), (3211, 79866), (3306, 77571), (3393, 75582), (3978, 64467), (4199, 61074), (4437, 57798), (4446, 57681), (4563, 56202), (4698, 54587), (4901, 52326), (4959, 51714), (5746, 44631), (5814, 44109), (5967, 42978), (6409, 40014), (6422, 39933), (6669, 38454), (6786, 37791), (7163, 35802), (8398, 30537), (8619, 29754), (8721, 29406), (8874, 28899), (9126, 28101), (9367, 27378), (9633, 26622), (9802, 26163), (9918, 25857), (10179, 25194), (11934, 21489), (12597, 20358), (12818, 20007), (13311, 19266), (13338, 19227), (13689, 18734), (14326, 17901), (14703, 17442), (14877, 17238)]