213131520

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{881}}^1$

素因数の和:918

約数の個数: 288

約数和(自身を含む): 865347840

約数和(自身を除く): 652216320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 881, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1680, 1728, 1762, 1792, 1890, 1920, 2016, 2160, 2240, 2304, 2520, 2643, 2688, 2880, 3024, 3360, 3456, 3524, 3780, 3840, 4032, 4320, 4405, 4480, 5040, 5286, 5376, 5760, 6048, 6167, 6720, 6912, 7048, 7560, 7929, 8064, 8640, 8810, 8960, 10080, 10572, 11520, 12096, 12334, 13215, 13440, 14096, 15120, 15858, 16128, 17280, 17620, 18501, 20160, 21144, 23787, 24192, 24668, 26430, 26880, 28192, 30240, 30835, 31716, 34560, 35240, 37002, 39645, 40320, 42288, 47574, 48384, 49336, 52860, 55503, 56384, 60480, 61670, 63432, 70480, 74004, 79290, 80640, 84576, 92505, 95148, 98672, 105720, 111006, 112768, 118935, 120960, 123340, 126864, 140960, 148008, 158580, 166509, 169152, 185010, 190296, 197344, 211440, 222012, 225536, 237870, 241920, 246680, 253728, 277515, 281920, 296016, 317160, 333018, 338304, 370020, 380592, 394688, 422880, 444024, 475740, 493360, 507456, 555030, 563840, 592032, 634320, 666036, 676608, 740040, 761184, 789376, 832545, 845760, 888048, 951480, 986720, 1014912, 1110060, 1127680, 1184064, 1268640, 1332072, 1480080, 1522368, 1578752, 1665090, 1691520, 1776096, 1902960, 1973440, 2029824, 2220120, 2368128, 2537280, 2664144, 2960160, 3044736, 3330180, 3383040, 3552192, 3805920, 3946880, 4440240, 4736256, 5074560, 5328288, 5920320, 6089472, 6660360, 7104384, 7611840, 7893760, 8880480, 10149120, 10656576, 11840640, 13320720, 14208768, 15223680, 17760960, 21313152, 23681280, 26641440, 30447360, 35521920, 42626304, 53282880, 71043840, 106565760, 213131520]

約数ペア:

[(1, 213131520), (2, 106565760), (3, 71043840), (4, 53282880), (5, 42626304), (6, 35521920), (7, 30447360), (8, 26641440), (9, 23681280), (10, 21313152), (12, 17760960), (14, 15223680), (15, 14208768), (16, 13320720), (18, 11840640), (20, 10656576), (21, 10149120), (24, 8880480), (27, 7893760), (28, 7611840), (30, 7104384), (32, 6660360), (35, 6089472), (36, 5920320), (40, 5328288), (42, 5074560), (45, 4736256), (48, 4440240), (54, 3946880), (56, 3805920), (60, 3552192), (63, 3383040), (64, 3330180), (70, 3044736), (72, 2960160), (80, 2664144), (84, 2537280), (90, 2368128), (96, 2220120), (105, 2029824), (108, 1973440), (112, 1902960), (120, 1776096), (126, 1691520), (128, 1665090), (135, 1578752), (140, 1522368), (144, 1480080), (160, 1332072), (168, 1268640), (180, 1184064), (189, 1127680), (192, 1110060), (210, 1014912), (216, 986720), (224, 951480), (240, 888048), (252, 845760), (256, 832545), (270, 789376), (280, 761184), (288, 740040), (315, 676608), (320, 666036), (336, 634320), (360, 592032), (378, 563840), (384, 555030), (420, 507456), (432, 493360), (448, 475740), (480, 444024), (504, 422880), (540, 394688), (560, 380592), (576, 370020), (630, 338304), (640, 333018), (672, 317160), (720, 296016), (756, 281920), (768, 277515), (840, 253728), (864, 246680), (881, 241920), (896, 237870), (945, 225536), (960, 222012), (1008, 211440), (1080, 197344), (1120, 190296), (1152, 185010), (1260, 169152), (1280, 166509), (1344, 158580), (1440, 148008), (1512, 140960), (1680, 126864), (1728, 123340), (1762, 120960), (1792, 118935), (1890, 112768), (1920, 111006), (2016, 105720), (2160, 98672), (2240, 95148), (2304, 92505), (2520, 84576), (2643, 80640), (2688, 79290), (2880, 74004), (3024, 70480), (3360, 63432), (3456, 61670), (3524, 60480), (3780, 56384), (3840, 55503), (4032, 52860), (4320, 49336), (4405, 48384), (4480, 47574), (5040, 42288), (5286, 40320), (5376, 39645), (5760, 37002), (6048, 35240), (6167, 34560), (6720, 31716), (6912, 30835), (7048, 30240), (7560, 28192), (7929, 26880), (8064, 26430), (8640, 24668), (8810, 24192), (8960, 23787), (10080, 21144), (10572, 20160), (11520, 18501), (12096, 17620), (12334, 17280), (13215, 16128), (13440, 15858), (14096, 15120)]