20909105280

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{518579}}^1$

素因数の和:518611

約数の個数: 192

約数和(自身を含む): 82516449600

約数和(自身を除く): 61607344320

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, 518579, 1037158, 1555737, 2074316, 2592895, 3111474, 3630053, 4148632, 4667211, 5185790, 6222948, 7260106, 7778685, 8297264, 9334422, 10371580, 10890159, 12445896, 14520212, 15557370, 16594528, 18150265, 18668844, 20743160, 21780318, 23336055, 24891792, 29040424, 31114740, 32670477, 33189056, 36300530, 37337688, 41486320, 43560636, 46672110, 49783584, 54450795, 58080848, 62229480, 65340954, 66378112, 72601060, 74675376, 82972640, 87121272, 93344220, 99567168, 108901590, 116161696, 124458960, 130681908, 145202120, 149350752, 163352385, 165945280, 174242544, 186688440, 199134336, 217803180, 232323392, 248917920, 261363816, 290404240, 298701504, 326704770, 331890560, 348485088, 373376880, 435606360, 464646784, 497835840, 522727632, 580808480, 597403008, 653409540, 696970176, 746753760, 871212720, 995671680, 1045455264, 1161616960, 1306819080, 1393940352, 1493507520, 1742425440, 2090910528, 2323233920, 2613638160, 2987015040, 3484850880, 4181821056, 5227276320, 6969701760, 10454552640, 20909105280]

約数ペア:

[(1, 20909105280), (2, 10454552640), (3, 6969701760), (4, 5227276320), (5, 4181821056), (6, 3484850880), (7, 2987015040), (8, 2613638160), (9, 2323233920), (10, 2090910528), (12, 1742425440), (14, 1493507520), (15, 1393940352), (16, 1306819080), (18, 1161616960), (20, 1045455264), (21, 995671680), (24, 871212720), (28, 746753760), (30, 696970176), (32, 653409540), (35, 597403008), (36, 580808480), (40, 522727632), (42, 497835840), (45, 464646784), (48, 435606360), (56, 373376880), (60, 348485088), (63, 331890560), (64, 326704770), (70, 298701504), (72, 290404240), (80, 261363816), (84, 248917920), (90, 232323392), (96, 217803180), (105, 199134336), (112, 186688440), (120, 174242544), (126, 165945280), (128, 163352385), (140, 149350752), (144, 145202120), (160, 130681908), (168, 124458960), (180, 116161696), (192, 108901590), (210, 99567168), (224, 93344220), (240, 87121272), (252, 82972640), (280, 74675376), (288, 72601060), (315, 66378112), (320, 65340954), (336, 62229480), (360, 58080848), (384, 54450795), (420, 49783584), (448, 46672110), (480, 43560636), (504, 41486320), (560, 37337688), (576, 36300530), (630, 33189056), (640, 32670477), (672, 31114740), (720, 29040424), (840, 24891792), (896, 23336055), (960, 21780318), (1008, 20743160), (1120, 18668844), (1152, 18150265), (1260, 16594528), (1344, 15557370), (1440, 14520212), (1680, 12445896), (1920, 10890159), (2016, 10371580), (2240, 9334422), (2520, 8297264), (2688, 7778685), (2880, 7260106), (3360, 6222948), (4032, 5185790), (4480, 4667211), (5040, 4148632), (5760, 3630053), (6720, 3111474), (8064, 2592895), (10080, 2074316), (13440, 1555737), (20160, 1037158), (40320, 518579)]