639387648

素因数分解:

$2^{11}\times 3^3\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:435

約数の個数: 192

約数和(自身を含む): 1960358400

約数和(自身を除く): 1320970752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 64, 72, 93, 96, 108, 124, 128, 144, 186, 192, 216, 248, 256, 279, 288, 372, 373, 384, 432, 496, 512, 558, 576, 744, 746, 768, 837, 864, 992, 1024, 1116, 1119, 1152, 1488, 1492, 1536, 1674, 1728, 1984, 2048, 2232, 2238, 2304, 2976, 2984, 3072, 3348, 3357, 3456, 3968, 4464, 4476, 4608, 5952, 5968, 6144, 6696, 6714, 6912, 7936, 8928, 8952, 9216, 10071, 11563, 11904, 11936, 13392, 13428, 13824, 15872, 17856, 17904, 18432, 20142, 23126, 23808, 23872, 26784, 26856, 27648, 31744, 34689, 35712, 35808, 40284, 46252, 47616, 47744, 53568, 53712, 55296, 63488, 69378, 71424, 71616, 80568, 92504, 95232, 95488, 104067, 107136, 107424, 138756, 142848, 143232, 161136, 185008, 190464, 190976, 208134, 214272, 214848, 277512, 285696, 286464, 312201, 322272, 370016, 381952, 416268, 428544, 429696, 555024, 571392, 572928, 624402, 644544, 740032, 763904, 832536, 857088, 859392, 1110048, 1145856, 1248804, 1289088, 1480064, 1665072, 1714176, 1718784, 2220096, 2291712, 2497608, 2578176, 2960128, 3330144, 3437568, 4440192, 4995216, 5156352, 5920256, 6660288, 6875136, 8880384, 9990432, 10312704, 11840512, 13320576, 17760768, 19980864, 20625408, 23681024, 26641152, 35521536, 39961728, 53282304, 71043072, 79923456, 106564608, 159846912, 213129216, 319693824, 639387648]

約数ペア:

[(1, 639387648), (2, 319693824), (3, 213129216), (4, 159846912), (6, 106564608), (8, 79923456), (9, 71043072), (12, 53282304), (16, 39961728), (18, 35521536), (24, 26641152), (27, 23681024), (31, 20625408), (32, 19980864), (36, 17760768), (48, 13320576), (54, 11840512), (62, 10312704), (64, 9990432), (72, 8880384), (93, 6875136), (96, 6660288), (108, 5920256), (124, 5156352), (128, 4995216), (144, 4440192), (186, 3437568), (192, 3330144), (216, 2960128), (248, 2578176), (256, 2497608), (279, 2291712), (288, 2220096), (372, 1718784), (373, 1714176), (384, 1665072), (432, 1480064), (496, 1289088), (512, 1248804), (558, 1145856), (576, 1110048), (744, 859392), (746, 857088), (768, 832536), (837, 763904), (864, 740032), (992, 644544), (1024, 624402), (1116, 572928), (1119, 571392), (1152, 555024), (1488, 429696), (1492, 428544), (1536, 416268), (1674, 381952), (1728, 370016), (1984, 322272), (2048, 312201), (2232, 286464), (2238, 285696), (2304, 277512), (2976, 214848), (2984, 214272), (3072, 208134), (3348, 190976), (3357, 190464), (3456, 185008), (3968, 161136), (4464, 143232), (4476, 142848), (4608, 138756), (5952, 107424), (5968, 107136), (6144, 104067), (6696, 95488), (6714, 95232), (6912, 92504), (7936, 80568), (8928, 71616), (8952, 71424), (9216, 69378), (10071, 63488), (11563, 55296), (11904, 53712), (11936, 53568), (13392, 47744), (13428, 47616), (13824, 46252), (15872, 40284), (17856, 35808), (17904, 35712), (18432, 34689), (20142, 31744), (23126, 27648), (23808, 26856), (23872, 26784)]