257395839120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:608

約数の個数: 960

約数和(自身を含む): 1062124876800

約数和(自身を除く): 804729037680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 48, 56, 60, 61, 63, 69, 70, 72, 80, 84, 89, 90, 92, 105, 112, 115, 120, 122, 126, 138, 140, 144, 161, 168, 178, 180, 183, 184, 207, 210, 230, 240, 244, 252, 267, 276, 280, 305, 315, 322, 336, 345, 356, 360, 366, 368, 409, 414, 420, 427, 445, 460, 483, 488, 504, 534, 549, 552, 560, 610, 623, 630, 644, 690, 712, 720, 732, 801, 805, 818, 828, 840, 854, 890, 915, 920, 966, 976, 1008, 1035, 1068, 1098, 1104, 1220, 1227, 1246, 1260, 1281, 1288, 1335, 1380, 1403, 1424, 1449, 1464, 1602, 1610, 1636, 1656, 1680, 1708, 1780, 1830, 1840, 1869, 1932, 2045, 2047, 2070, 2135, 2136, 2196, 2415, 2440, 2454, 2492, 2520, 2562, 2576, 2670, 2745, 2760, 2806, 2863, 2898, 2928, 3115, 3204, 3220, 3272, 3312, 3416, 3560, 3660, 3681, 3738, 3843, 3864, 4005, 4090, 4094, 4140, 4209, 4270, 4272, 4392, 4830, 4880, 4908, 4984, 5040, 5124, 5340, 5429, 5490, 5520, 5607, 5612, 5726, 5796, 6135, 6141, 6230, 6405, 6408, 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約数ペア:

[(1, 257395839120), (2, 128697919560), (3, 85798613040), (4, 64348959780), (5, 51479167824), (6, 42899306520), (7, 36770834160), (8, 32174479890), (9, 28599537680), (10, 25739583912), (12, 21449653260), (14, 18385417080), (15, 17159722608), (16, 16087239945), (18, 14299768840), (20, 12869791956), (21, 12256944720), (23, 11191123440), (24, 10724826630), (28, 9192708540), (30, 8579861304), (35, 7354166832), (36, 7149884420), (40, 6434895978), (42, 6128472360), (45, 5719907536), (46, 5595561720), (48, 5362413315), (56, 4596354270), (60, 4289930652), (61, 4219603920), (63, 4085648240), (69, 3730374480), (70, 3677083416), (72, 3574942210), (80, 3217447989), (84, 3064236180), (89, 2892088080), (90, 2859953768), (92, 2797780860), (105, 2451388944), (112, 2298177135), (115, 2238224688), (120, 2144965326), (122, 2109801960), (126, 2042824120), (138, 1865187240), (140, 1838541708), (144, 1787471105), (161, 1598731920), (168, 1532118090), (178, 1446044040), (180, 1429976884), (183, 1406534640), (184, 1398890430), (207, 1243458160), (210, 1225694472), (230, 1119112344), (240, 1072482663), (244, 1054900980), (252, 1021412060), (267, 964029360), (276, 932593620), (280, 919270854), (305, 843920784), (315, 817129648), (322, 799365960), (336, 766059045), (345, 746074896), (356, 723022020), (360, 714988442), (366, 703267320), (368, 699445215), (409, 629329680), (414, 621729080), (420, 612847236), (427, 602800560), (445, 578417616), (460, 559556172), (483, 532910640), (488, 527450490), (504, 510706030), (534, 482014680), (549, 468844880), (552, 466296810), (560, 459635427), (610, 421960392), (623, 413155440), (630, 408564824), (644, 399682980), (690, 373037448), (712, 361511010), (720, 357494221), (732, 351633660), (801, 321343120), (805, 319746384), (818, 314664840), (828, 310864540), (840, 306423618), (854, 301400280), (890, 289208808), (915, 281306928), (920, 279778086), (966, 266455320), (976, 263725245), (1008, 255353015), (1035, 248691632), (1068, 241007340), (1098, 234422440), (1104, 233148405), (1220, 210980196), (1227, 209776560), (1246, 206577720), (1260, 204282412), (1281, 200933520), (1288, 199841490), (1335, 192805872), (1380, 186518724), (1403, 183461040), (1424, 180755505), (1449, 177636880), (1464, 175816830), (1602, 160671560), (1610, 159873192), (1636, 157332420), (1656, 155432270), (1680, 153211809), (1708, 150700140), (1780, 144604404), (1830, 140653464), (1840, 139889043), (1869, 137718480), (1932, 133227660), (2045, 125865936), (2047, 125742960), (2070, 124345816), (2135, 120560112), (2136, 120503670), (2196, 117211220), (2415, 106582128), (2440, 105490098), (2454, 104888280), (2492, 103288860), (2520, 102141206), (2562, 100466760), (2576, 99920745), (2670, 96402936), (2745, 93768976), (2760, 93259362), (2806, 91730520), (2863, 89904240), (2898, 88818440), (2928, 87908415), (3115, 82631088), (3204, 80335780), (3220, 79936596), (3272, 78666210), (3312, 77716135), (3416, 75350070), (3560, 72302202), (3660, 70326732), (3681, 69925520), (3738, 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