254384640

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 240

約数和(自身を含む): 900395496

約数和(自身を除く): 646010856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 64, 72, 80, 90, 96, 120, 122, 128, 144, 160, 180, 181, 183, 192, 240, 244, 256, 288, 305, 320, 360, 362, 366, 384, 480, 488, 512, 543, 549, 576, 610, 640, 720, 724, 732, 768, 905, 915, 960, 976, 1086, 1098, 1152, 1220, 1280, 1440, 1448, 1464, 1536, 1629, 1810, 1830, 1920, 1952, 2172, 2196, 2304, 2440, 2560, 2715, 2745, 2880, 2896, 2928, 3258, 3620, 3660, 3840, 3904, 4344, 4392, 4608, 4880, 5430, 5490, 5760, 5792, 5856, 6516, 7240, 7320, 7680, 7808, 8145, 8688, 8784, 9760, 10860, 10980, 11041, 11520, 11584, 11712, 13032, 14480, 14640, 15616, 16290, 17376, 17568, 19520, 21720, 21960, 22082, 23040, 23168, 23424, 26064, 28960, 29280, 31232, 32580, 33123, 34752, 35136, 39040, 43440, 43920, 44164, 46336, 46848, 52128, 55205, 57920, 58560, 65160, 66246, 69504, 70272, 78080, 86880, 87840, 88328, 92672, 93696, 99369, 104256, 110410, 115840, 117120, 130320, 132492, 139008, 140544, 156160, 165615, 173760, 175680, 176656, 198738, 208512, 220820, 231680, 234240, 260640, 264984, 278016, 281088, 331230, 347520, 351360, 353312, 397476, 417024, 441640, 463360, 468480, 496845, 521280, 529968, 662460, 695040, 702720, 706624, 794952, 834048, 883280, 993690, 1042560, 1059936, 1324920, 1390080, 1405440, 1413248, 1589904, 1766560, 1987380, 2085120, 2119872, 2649840, 2826496, 3179808, 3533120, 3974760, 4170240, 4239744, 5299680, 5652992, 6359616, 7066240, 7949520, 8479488, 10599360, 12719232, 14132480, 15899040, 16958976, 21198720, 25438464, 28264960, 31798080, 42397440, 50876928, 63596160, 84794880, 127192320, 254384640]

約数ペア:

[(1, 254384640), (2, 127192320), (3, 84794880), (4, 63596160), (5, 50876928), (6, 42397440), (8, 31798080), (9, 28264960), (10, 25438464), (12, 21198720), (15, 16958976), (16, 15899040), (18, 14132480), (20, 12719232), (24, 10599360), (30, 8479488), (32, 7949520), (36, 7066240), (40, 6359616), (45, 5652992), (48, 5299680), (60, 4239744), (61, 4170240), (64, 3974760), (72, 3533120), (80, 3179808), (90, 2826496), (96, 2649840), (120, 2119872), (122, 2085120), (128, 1987380), (144, 1766560), (160, 1589904), (180, 1413248), (181, 1405440), (183, 1390080), (192, 1324920), (240, 1059936), (244, 1042560), (256, 993690), (288, 883280), (305, 834048), (320, 794952), (360, 706624), (362, 702720), (366, 695040), (384, 662460), (480, 529968), (488, 521280), (512, 496845), (543, 468480), (549, 463360), (576, 441640), (610, 417024), (640, 397476), (720, 353312), (724, 351360), (732, 347520), (768, 331230), (905, 281088), (915, 278016), (960, 264984), (976, 260640), (1086, 234240), (1098, 231680), (1152, 220820), (1220, 208512), (1280, 198738), (1440, 176656), (1448, 175680), (1464, 173760), (1536, 165615), (1629, 156160), (1810, 140544), (1830, 139008), (1920, 132492), (1952, 130320), (2172, 117120), (2196, 115840), (2304, 110410), (2440, 104256), (2560, 99369), (2715, 93696), (2745, 92672), (2880, 88328), (2896, 87840), (2928, 86880), (3258, 78080), (3620, 70272), (3660, 69504), (3840, 66246), (3904, 65160), (4344, 58560), (4392, 57920), (4608, 55205), (4880, 52128), (5430, 46848), (5490, 46336), (5760, 44164), (5792, 43920), (5856, 43440), (6516, 39040), (7240, 35136), (7320, 34752), (7680, 33123), (7808, 32580), (8145, 31232), (8688, 29280), (8784, 28960), (9760, 26064), (10860, 23424), (10980, 23168), (11041, 23040), (11520, 22082), (11584, 21960), (11712, 21720), (13032, 19520), (14480, 17568), (14640, 17376), (15616, 16290)]