20906282880

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{518509}}^1$

素因数の和:518541

約数の個数: 192

約数和(自身を含む): 82505311200

約数和(自身を除く): 61599028320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6720, 8064, 10080, 13440, 20160, 40320, 518509, 1037018, 1555527, 2074036, 2592545, 3111054, 3629563, 4148072, 4666581, 5185090, 6222108, 7259126, 7777635, 8296144, 9333162, 10370180, 10888689, 12444216, 14518252, 15555270, 16592288, 18147815, 18666324, 20740360, 21777378, 23332905, 24888432, 29036504, 31110540, 32666067, 33184576, 36295630, 37332648, 41480720, 43554756, 46665810, 49776864, 54443445, 58073008, 62221080, 65332134, 66369152, 72591260, 74665296, 82961440, 87109512, 93331620, 99553728, 108886890, 116146016, 124442160, 130664268, 145182520, 149330592, 163330335, 165922880, 174219024, 186663240, 199107456, 217773780, 232292032, 248884320, 261328536, 290365040, 298661184, 326660670, 331845760, 348438048, 373326480, 435547560, 464584064, 497768640, 522657072, 580730080, 597322368, 653321340, 696876096, 746652960, 871095120, 995537280, 1045314144, 1161460160, 1306642680, 1393752192, 1493305920, 1742190240, 2090628288, 2322920320, 2613285360, 2986611840, 3484380480, 4181256576, 5226570720, 6968760960, 10453141440, 20906282880]

約数ペア:

[(1, 20906282880), (2, 10453141440), (3, 6968760960), (4, 5226570720), (5, 4181256576), (6, 3484380480), (7, 2986611840), (8, 2613285360), (9, 2322920320), (10, 2090628288), (12, 1742190240), (14, 1493305920), (15, 1393752192), (16, 1306642680), (18, 1161460160), (20, 1045314144), (21, 995537280), (24, 871095120), (28, 746652960), (30, 696876096), (32, 653321340), (35, 597322368), (36, 580730080), (40, 522657072), (42, 497768640), (45, 464584064), (48, 435547560), (56, 373326480), (60, 348438048), (63, 331845760), (64, 326660670), (70, 298661184), (72, 290365040), (80, 261328536), (84, 248884320), (90, 232292032), (96, 217773780), (105, 199107456), (112, 186663240), (120, 174219024), (126, 165922880), (128, 163330335), (140, 149330592), (144, 145182520), (160, 130664268), (168, 124442160), (180, 116146016), (192, 108886890), (210, 99553728), (224, 93331620), (240, 87109512), (252, 82961440), (280, 74665296), (288, 72591260), (315, 66369152), (320, 65332134), (336, 62221080), (360, 58073008), (384, 54443445), (420, 49776864), (448, 46665810), (480, 43554756), (504, 41480720), (560, 37332648), (576, 36295630), (630, 33184576), (640, 32666067), (672, 31110540), (720, 29036504), (840, 24888432), (896, 23332905), (960, 21777378), (1008, 20740360), (1120, 18666324), (1152, 18147815), (1260, 16592288), (1344, 15555270), (1440, 14518252), (1680, 12444216), (1920, 10888689), (2016, 10370180), (2240, 9333162), (2520, 8296144), (2688, 7777635), (2880, 7259126), (3360, 6222108), (4032, 5185090), (4480, 4666581), (5040, 4148072), (5760, 3629563), (6720, 3111054), (8064, 2592545), (10080, 2074036), (13440, 1555527), (20160, 1037018), (40320, 518509)]