642839808

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:161

約数の個数: 216

約数和(自身を含む): 1932266784

約数和(自身を除く): 1289426976

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 67, 78, 93, 96, 104, 124, 128, 134, 156, 186, 192, 201, 208, 248, 256, 268, 312, 372, 384, 402, 403, 416, 496, 536, 624, 744, 768, 804, 806, 832, 871, 961, 992, 1072, 1209, 1248, 1488, 1608, 1612, 1664, 1742, 1922, 1984, 2077, 2144, 2418, 2496, 2613, 2883, 2976, 3216, 3224, 3328, 3484, 3844, 3968, 4154, 4288, 4836, 4992, 5226, 5766, 5952, 6231, 6432, 6448, 6968, 7688, 7936, 8308, 8576, 9672, 9984, 10452, 11532, 11904, 12462, 12493, 12864, 12896, 13936, 15376, 16616, 17152, 19344, 20904, 23064, 23808, 24924, 24986, 25728, 25792, 27001, 27872, 30752, 33232, 37479, 38688, 41808, 46128, 49848, 49972, 51456, 51584, 54002, 55744, 61504, 64387, 66464, 74958, 77376, 81003, 83616, 92256, 99696, 99944, 103168, 108004, 111488, 123008, 128774, 132928, 149916, 154752, 162006, 167232, 184512, 193161, 199392, 199888, 216008, 222976, 246016, 257548, 265856, 299832, 309504, 324012, 334464, 369024, 386322, 398784, 399776, 432016, 515096, 531712, 599664, 648024, 668928, 738048, 772644, 797568, 799552, 837031, 864032, 1030192, 1199328, 1296048, 1545288, 1595136, 1599104, 1674062, 1728064, 2060384, 2398656, 2511093, 2592096, 3090576, 3198208, 3348124, 3456128, 4120768, 4797312, 5022186, 5184192, 6181152, 6696248, 6912256, 8241536, 9594624, 10044372, 10368384, 12362304, 13392496, 16483072, 20088744, 20736768, 24724608, 26784992, 40177488, 49449216, 53569984, 80354976, 107139968, 160709952, 214279936, 321419904, 642839808]

約数ペア:

[(1, 642839808), (2, 321419904), (3, 214279936), (4, 160709952), (6, 107139968), (8, 80354976), (12, 53569984), (13, 49449216), (16, 40177488), (24, 26784992), (26, 24724608), (31, 20736768), (32, 20088744), (39, 16483072), (48, 13392496), (52, 12362304), (62, 10368384), (64, 10044372), (67, 9594624), (78, 8241536), (93, 6912256), (96, 6696248), (104, 6181152), (124, 5184192), (128, 5022186), (134, 4797312), (156, 4120768), (186, 3456128), (192, 3348124), (201, 3198208), (208, 3090576), (248, 2592096), (256, 2511093), (268, 2398656), (312, 2060384), (372, 1728064), (384, 1674062), (402, 1599104), (403, 1595136), (416, 1545288), (496, 1296048), (536, 1199328), (624, 1030192), (744, 864032), (768, 837031), (804, 799552), (806, 797568), (832, 772644), (871, 738048), (961, 668928), (992, 648024), (1072, 599664), (1209, 531712), (1248, 515096), (1488, 432016), (1608, 399776), (1612, 398784), (1664, 386322), (1742, 369024), (1922, 334464), (1984, 324012), (2077, 309504), (2144, 299832), (2418, 265856), (2496, 257548), (2613, 246016), (2883, 222976), (2976, 216008), (3216, 199888), (3224, 199392), (3328, 193161), (3484, 184512), (3844, 167232), (3968, 162006), (4154, 154752), (4288, 149916), (4836, 132928), (4992, 128774), (5226, 123008), (5766, 111488), (5952, 108004), (6231, 103168), (6432, 99944), (6448, 99696), (6968, 92256), (7688, 83616), (7936, 81003), (8308, 77376), (8576, 74958), (9672, 66464), (9984, 64387), (10452, 61504), (11532, 55744), (11904, 54002), (12462, 51584), (12493, 51456), (12864, 49972), (12896, 49848), (13936, 46128), (15376, 41808), (16616, 38688), (17152, 37479), (19344, 33232), (20904, 30752), (23064, 27872), (23808, 27001), (24924, 25792), (24986, 25728)]