20685870720

素因数分解:

$2^7\times 3^7\times 5^1\times {\mathrm{14779}}^1$

素因数の和:14819

約数の個数: 256

約数和(自身を含む): 74171952000

約数和(自身を除く): 53486081280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 729, 810, 864, 960, 972, 1080, 1152, 1215, 1296, 1440, 1458, 1620, 1728, 1920, 1944, 2160, 2187, 2430, 2592, 2880, 2916, 3240, 3456, 3645, 3888, 4320, 4374, 4860, 5184, 5760, 5832, 6480, 7290, 7776, 8640, 8748, 9720, 10368, 10935, 11664, 12960, 14580, 14779, 15552, 17280, 17496, 19440, 21870, 23328, 25920, 29160, 29558, 31104, 34992, 38880, 43740, 44337, 46656, 51840, 58320, 59116, 69984, 73895, 77760, 87480, 88674, 93312, 116640, 118232, 133011, 139968, 147790, 155520, 174960, 177348, 221685, 233280, 236464, 266022, 279936, 295580, 349920, 354696, 399033, 443370, 466560, 472928, 532044, 591160, 665055, 699840, 709392, 798066, 886740, 945856, 1064088, 1182320, 1197099, 1330110, 1399680, 1418784, 1596132, 1773480, 1891712, 1995165, 2128176, 2364640, 2394198, 2660220, 2837568, 3192264, 3546960, 3591297, 3990330, 4256352, 4729280, 4788396, 5320440, 5675136, 5985495, 6384528, 7093920, 7182594, 7980660, 8512704, 9458560, 9576792, 10640880, 10773891, 11970990, 12769056, 14187840, 14365188, 15961320, 17025408, 17956485, 19153584, 21281760, 21547782, 23941980, 25538112, 28375680, 28730376, 31922640, 32321673, 35912970, 38307168, 42563520, 43095564, 47883960, 51076224, 53869455, 57460752, 63845280, 64643346, 71825940, 76614336, 85127040, 86191128, 95767920, 107738910, 114921504, 127690560, 129286692, 143651880, 153228672, 161608365, 172382256, 191535840, 215477820, 229843008, 255381120, 258573384, 287303760, 323216730, 344764512, 383071680, 430955640, 459686016, 517146768, 574607520, 646433460, 689529024, 766143360, 861911280, 1034293536, 1149215040, 1292866920, 1379058048, 1723822560, 2068587072, 2298430080, 2585733840, 3447645120, 4137174144, 5171467680, 6895290240, 10342935360, 20685870720]

約数ペア:

[(1, 20685870720), (2, 10342935360), (3, 6895290240), (4, 5171467680), (5, 4137174144), (6, 3447645120), (8, 2585733840), (9, 2298430080), (10, 2068587072), (12, 1723822560), (15, 1379058048), (16, 1292866920), (18, 1149215040), (20, 1034293536), (24, 861911280), (27, 766143360), (30, 689529024), (32, 646433460), (36, 574607520), (40, 517146768), (45, 459686016), (48, 430955640), (54, 383071680), (60, 344764512), (64, 323216730), (72, 287303760), (80, 258573384), (81, 255381120), (90, 229843008), (96, 215477820), (108, 191535840), (120, 172382256), (128, 161608365), (135, 153228672), (144, 143651880), (160, 129286692), (162, 127690560), (180, 114921504), (192, 107738910), (216, 95767920), (240, 86191128), (243, 85127040), (270, 76614336), (288, 71825940), (320, 64643346), (324, 63845280), (360, 57460752), (384, 53869455), (405, 51076224), (432, 47883960), (480, 43095564), (486, 42563520), (540, 38307168), (576, 35912970), (640, 32321673), (648, 31922640), (720, 28730376), (729, 28375680), (810, 25538112), (864, 23941980), (960, 21547782), (972, 21281760), (1080, 19153584), (1152, 17956485), (1215, 17025408), (1296, 15961320), (1440, 14365188), (1458, 14187840), (1620, 12769056), (1728, 11970990), (1920, 10773891), (1944, 10640880), (2160, 9576792), (2187, 9458560), (2430, 8512704), (2592, 7980660), (2880, 7182594), (2916, 7093920), (3240, 6384528), (3456, 5985495), (3645, 5675136), (3888, 5320440), (4320, 4788396), (4374, 4729280), (4860, 4256352), (5184, 3990330), (5760, 3591297), (5832, 3546960), (6480, 3192264), (7290, 2837568), (7776, 2660220), (8640, 2394198), (8748, 2364640), (9720, 2128176), (10368, 1995165), (10935, 1891712), (11664, 1773480), (12960, 1596132), (14580, 1418784), (14779, 1399680), (15552, 1330110), (17280, 1197099), (17496, 1182320), (19440, 1064088), (21870, 945856), (23328, 886740), (25920, 798066), (29160, 709392), (29558, 699840), (31104, 665055), (34992, 591160), (38880, 532044), (43740, 472928), (44337, 466560), (46656, 443370), (51840, 399033), (58320, 354696), (59116, 349920), (69984, 295580), (73895, 279936), (77760, 266022), (87480, 236464), (88674, 233280), (93312, 221685), (116640, 177348), (118232, 174960), (133011, 155520), (139968, 147790)]