256211280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{883}}^1$

素因数の和:946

約数の個数: 240

約数和(自身を含む): 957605376

約数和(自身を除く): 701394096

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 48, 52, 60, 62, 65, 72, 78, 80, 90, 93, 104, 117, 120, 124, 130, 144, 155, 156, 180, 186, 195, 208, 234, 240, 248, 260, 279, 310, 312, 360, 372, 390, 403, 465, 468, 496, 520, 558, 585, 620, 624, 720, 744, 780, 806, 883, 930, 936, 1040, 1116, 1170, 1209, 1240, 1395, 1488, 1560, 1612, 1766, 1860, 1872, 2015, 2232, 2340, 2418, 2480, 2649, 2790, 3120, 3224, 3532, 3627, 3720, 4030, 4415, 4464, 4680, 4836, 5298, 5580, 6045, 6448, 7064, 7254, 7440, 7947, 8060, 8830, 9360, 9672, 10596, 11160, 11479, 12090, 13245, 14128, 14508, 15894, 16120, 17660, 18135, 19344, 21192, 22320, 22958, 24180, 26490, 27373, 29016, 31788, 32240, 34437, 35320, 36270, 39735, 42384, 45916, 48360, 52980, 54746, 57395, 58032, 63576, 68874, 70640, 72540, 79470, 82119, 91832, 96720, 103311, 105960, 109492, 114790, 127152, 136865, 137748, 145080, 158940, 164238, 172185, 183664, 206622, 211920, 218984, 229580, 246357, 273730, 275496, 290160, 317880, 328476, 344370, 355849, 410595, 413244, 437968, 459160, 492714, 516555, 547460, 550992, 635760, 656952, 688740, 711698, 821190, 826488, 918320, 985428, 1033110, 1067547, 1094920, 1231785, 1313904, 1377480, 1423396, 1642380, 1652976, 1779245, 1970856, 2066220, 2135094, 2189840, 2463570, 2754960, 2846792, 3202641, 3284760, 3558490, 3941712, 4132440, 4270188, 4927140, 5337735, 5693584, 6405282, 6569520, 7116980, 8264880, 8540376, 9854280, 10675470, 12810564, 14233960, 16013205, 17080752, 19708560, 21350940, 25621128, 28467920, 32026410, 42701880, 51242256, 64052820, 85403760, 128105640, 256211280]

約数ペア:

[(1, 256211280), (2, 128105640), (3, 85403760), (4, 64052820), (5, 51242256), (6, 42701880), (8, 32026410), (9, 28467920), (10, 25621128), (12, 21350940), (13, 19708560), (15, 17080752), (16, 16013205), (18, 14233960), (20, 12810564), (24, 10675470), (26, 9854280), (30, 8540376), (31, 8264880), (36, 7116980), (39, 6569520), (40, 6405282), (45, 5693584), (48, 5337735), (52, 4927140), (60, 4270188), (62, 4132440), (65, 3941712), (72, 3558490), (78, 3284760), (80, 3202641), (90, 2846792), (93, 2754960), (104, 2463570), (117, 2189840), (120, 2135094), (124, 2066220), (130, 1970856), (144, 1779245), (155, 1652976), (156, 1642380), (180, 1423396), (186, 1377480), (195, 1313904), (208, 1231785), (234, 1094920), (240, 1067547), (248, 1033110), (260, 985428), (279, 918320), (310, 826488), (312, 821190), (360, 711698), (372, 688740), (390, 656952), (403, 635760), (465, 550992), (468, 547460), (496, 516555), (520, 492714), (558, 459160), (585, 437968), (620, 413244), (624, 410595), (720, 355849), (744, 344370), (780, 328476), (806, 317880), (883, 290160), (930, 275496), (936, 273730), (1040, 246357), (1116, 229580), (1170, 218984), (1209, 211920), (1240, 206622), (1395, 183664), (1488, 172185), (1560, 164238), (1612, 158940), (1766, 145080), (1860, 137748), (1872, 136865), (2015, 127152), (2232, 114790), (2340, 109492), (2418, 105960), (2480, 103311), (2649, 96720), (2790, 91832), (3120, 82119), (3224, 79470), (3532, 72540), (3627, 70640), (3720, 68874), (4030, 63576), (4415, 58032), (4464, 57395), (4680, 54746), (4836, 52980), (5298, 48360), (5580, 45916), (6045, 42384), (6448, 39735), (7064, 36270), (7254, 35320), (7440, 34437), (7947, 32240), (8060, 31788), (8830, 29016), (9360, 27373), (9672, 26490), (10596, 24180), (11160, 22958), (11479, 22320), (12090, 21192), (13245, 19344), (14128, 18135), (14508, 17660), (15894, 16120)]