647257728

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 256

約数和(自身を含む): 2035756800

約数和(自身を除く): 1388499072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 29, 32, 34, 39, 48, 51, 52, 58, 64, 68, 78, 87, 96, 102, 104, 116, 128, 136, 156, 174, 192, 204, 208, 221, 232, 263, 272, 312, 348, 377, 384, 408, 416, 442, 464, 493, 526, 544, 624, 663, 696, 754, 789, 816, 832, 884, 928, 986, 1052, 1088, 1131, 1248, 1326, 1392, 1479, 1508, 1578, 1632, 1664, 1768, 1856, 1972, 2104, 2176, 2262, 2496, 2652, 2784, 2958, 3016, 3156, 3264, 3419, 3536, 3712, 3944, 4208, 4471, 4524, 4992, 5304, 5568, 5916, 6032, 6312, 6409, 6528, 6838, 7072, 7627, 7888, 8416, 8942, 9048, 10257, 10608, 11136, 11832, 12064, 12624, 12818, 13413, 13676, 14144, 15254, 15776, 16832, 17884, 18096, 19227, 20514, 21216, 22881, 23664, 24128, 25248, 25636, 26826, 27352, 28288, 30508, 31552, 33664, 35768, 36192, 38454, 41028, 42432, 45762, 47328, 48256, 50496, 51272, 53652, 54704, 58123, 61016, 63104, 71536, 72384, 76908, 82056, 84864, 91524, 94656, 99151, 100992, 102544, 107304, 109408, 116246, 122032, 129659, 143072, 144768, 153816, 164112, 174369, 183048, 189312, 198302, 205088, 214608, 218816, 232492, 244064, 259318, 286144, 297453, 307632, 328224, 348738, 366096, 388977, 396604, 410176, 429216, 437632, 464984, 488128, 518636, 572288, 594906, 615264, 656448, 697476, 732192, 777954, 793208, 820352, 858432, 929968, 976256, 1037272, 1189812, 1230528, 1312896, 1394952, 1464384, 1555908, 1586416, 1685567, 1716864, 1859936, 2074544, 2379624, 2461056, 2789904, 2928768, 3111816, 3172832, 3371134, 3719872, 4149088, 4759248, 5056701, 5579808, 6223632, 6345664, 6742268, 7439744, 8298176, 9518496, 10113402, 11159616, 12447264, 12691328, 13484536, 16596352, 19036992, 20226804, 22319232, 24894528, 26969072, 38073984, 40453608, 49789056, 53938144, 80907216, 107876288, 161814432, 215752576, 323628864, 647257728]

約数ペア:

[(1, 647257728), (2, 323628864), (3, 215752576), (4, 161814432), (6, 107876288), (8, 80907216), (12, 53938144), (13, 49789056), (16, 40453608), (17, 38073984), (24, 26969072), (26, 24894528), (29, 22319232), (32, 20226804), (34, 19036992), (39, 16596352), (48, 13484536), (51, 12691328), (52, 12447264), (58, 11159616), (64, 10113402), (68, 9518496), (78, 8298176), (87, 7439744), (96, 6742268), (102, 6345664), (104, 6223632), (116, 5579808), (128, 5056701), (136, 4759248), (156, 4149088), (174, 3719872), (192, 3371134), (204, 3172832), (208, 3111816), (221, 2928768), (232, 2789904), (263, 2461056), (272, 2379624), (312, 2074544), (348, 1859936), (377, 1716864), (384, 1685567), (408, 1586416), (416, 1555908), (442, 1464384), (464, 1394952), (493, 1312896), (526, 1230528), (544, 1189812), (624, 1037272), (663, 976256), (696, 929968), (754, 858432), (789, 820352), (816, 793208), (832, 777954), (884, 732192), (928, 697476), (986, 656448), (1052, 615264), (1088, 594906), (1131, 572288), (1248, 518636), (1326, 488128), (1392, 464984), (1479, 437632), (1508, 429216), (1578, 410176), (1632, 396604), (1664, 388977), (1768, 366096), (1856, 348738), (1972, 328224), (2104, 307632), (2176, 297453), (2262, 286144), (2496, 259318), (2652, 244064), (2784, 232492), (2958, 218816), (3016, 214608), (3156, 205088), (3264, 198302), (3419, 189312), (3536, 183048), (3712, 174369), (3944, 164112), (4208, 153816), (4471, 144768), (4524, 143072), (4992, 129659), (5304, 122032), (5568, 116246), (5916, 109408), (6032, 107304), (6312, 102544), (6409, 100992), (6528, 99151), (6838, 94656), (7072, 91524), (7627, 84864), (7888, 82056), (8416, 76908), (8942, 72384), (9048, 71536), (10257, 63104), (10608, 61016), (11136, 58123), (11832, 54704), (12064, 53652), (12624, 51272), (12818, 50496), (13413, 48256), (13676, 47328), (14144, 45762), (15254, 42432), (15776, 41028), (16832, 38454), (17884, 36192), (18096, 35768), (19227, 33664), (20514, 31552), (21216, 30508), (22881, 28288), (23664, 27352), (24128, 26826), (25248, 25636)]