20728493280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{4657}}^1$

素因数の和:4970

約数の個数: 288

約数和(自身を含む): 77457770208

約数和(自身を除く): 56729276928

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 281, 288, 330, 352, 360, 396, 440, 480, 495, 528, 562, 660, 720, 792, 843, 880, 990, 1056, 1124, 1320, 1405, 1440, 1584, 1686, 1760, 1980, 2248, 2529, 2640, 2810, 3091, 3168, 3372, 3960, 4215, 4496, 4657, 5058, 5280, 5620, 6182, 6744, 7920, 8430, 8992, 9273, 9314, 10116, 11240, 12364, 12645, 13488, 13971, 15455, 15840, 16860, 18546, 18628, 20232, 22480, 23285, 24728, 25290, 26976, 27819, 27942, 30910, 33720, 37092, 37256, 40464, 41913, 44960, 46365, 46570, 49456, 50580, 51227, 55638, 55884, 61820, 67440, 69855, 74184, 74512, 80928, 83826, 92730, 93140, 98912, 101160, 102454, 111276, 111768, 123640, 134880, 139095, 139710, 148368, 149024, 153681, 167652, 185460, 186280, 202320, 204908, 209565, 222552, 223536, 247280, 256135, 278190, 279420, 296736, 307362, 335304, 370920, 372560, 404640, 409816, 419130, 445104, 447072, 461043, 494560, 512270, 556380, 558840, 614724, 670608, 741840, 745120, 768405, 819632, 838260, 890208, 922086, 1024540, 1112760, 1117680, 1229448, 1308617, 1341216, 1483680, 1536810, 1639264, 1676520, 1844172, 2049080, 2225520, 2235360, 2305215, 2458896, 2617234, 3073620, 3353040, 3688344, 3925851, 4098160, 4451040, 4610430, 4917792, 5234468, 6147240, 6543085, 6706080, 7376688, 7851702, 8196320, 9220860, 10468936, 11777553, 12294480, 13086170, 14394787, 14753376, 15703404, 18441720, 19629255, 20937872, 23555106, 24588960, 26172340, 28789574, 31406808, 36883440, 39258510, 41875744, 43184361, 47110212, 52344680, 57579148, 58887765, 62813616, 71973935, 73766880, 78517020, 86368722, 94220424, 104689360, 115158296, 117775530, 125627232, 129553083, 143947870, 157034040, 172737444, 188440848, 209378720, 215921805, 230316592, 235551060, 259106166, 287895740, 314068080, 345474888, 376881696, 431843610, 460633184, 471102120, 518212332, 575791480, 628136160, 647765415, 690949776, 863687220, 942204240, 1036424664, 1151582960, 1295530830, 1381899552, 1727374440, 1884408480, 2072849328, 2303165920, 2591061660, 3454748880, 4145698656, 5182123320, 6909497760, 10364246640, 20728493280]

約数ペア:

[(1, 20728493280), (2, 10364246640), (3, 6909497760), (4, 5182123320), (5, 4145698656), (6, 3454748880), (8, 2591061660), (9, 2303165920), (10, 2072849328), (11, 1884408480), (12, 1727374440), (15, 1381899552), (16, 1295530830), (18, 1151582960), (20, 1036424664), (22, 942204240), (24, 863687220), (30, 690949776), (32, 647765415), (33, 628136160), (36, 575791480), (40, 518212332), (44, 471102120), (45, 460633184), (48, 431843610), (55, 376881696), (60, 345474888), (66, 314068080), (72, 287895740), (80, 259106166), (88, 235551060), (90, 230316592), (96, 215921805), (99, 209378720), (110, 188440848), (120, 172737444), (132, 157034040), (144, 143947870), (160, 129553083), (165, 125627232), (176, 117775530), (180, 115158296), (198, 104689360), (220, 94220424), (240, 86368722), (264, 78517020), (281, 73766880), (288, 71973935), (330, 62813616), (352, 58887765), (360, 57579148), (396, 52344680), (440, 47110212), (480, 43184361), (495, 41875744), (528, 39258510), (562, 36883440), (660, 31406808), (720, 28789574), (792, 26172340), (843, 24588960), (880, 23555106), (990, 20937872), (1056, 19629255), (1124, 18441720), (1320, 15703404), (1405, 14753376), (1440, 14394787), (1584, 13086170), (1686, 12294480), (1760, 11777553), (1980, 10468936), (2248, 9220860), (2529, 8196320), (2640, 7851702), (2810, 7376688), (3091, 6706080), (3168, 6543085), (3372, 6147240), (3960, 5234468), (4215, 4917792), (4496, 4610430), (4657, 4451040), (5058, 4098160), (5280, 3925851), (5620, 3688344), (6182, 3353040), (6744, 3073620), (7920, 2617234), (8430, 2458896), (8992, 2305215), (9273, 2235360), (9314, 2225520), (10116, 2049080), (11240, 1844172), (12364, 1676520), (12645, 1639264), (13488, 1536810), (13971, 1483680), (15455, 1341216), (15840, 1308617), (16860, 1229448), (18546, 1117680), (18628, 1112760), (20232, 1024540), (22480, 922086), (23285, 890208), (24728, 838260), (25290, 819632), (26976, 768405), (27819, 745120), (27942, 741840), (30910, 670608), (33720, 614724), (37092, 558840), (37256, 556380), (40464, 512270), (41913, 494560), (44960, 461043), (46365, 447072), (46570, 445104), (49456, 419130), (50580, 409816), (51227, 404640), (55638, 372560), (55884, 370920), (61820, 335304), (67440, 307362), (69855, 296736), (74184, 279420), (74512, 278190), (80928, 256135), (83826, 247280), (92730, 223536), (93140, 222552), (98912, 209565), (101160, 204908), (102454, 202320), (111276, 186280), (111768, 185460), (123640, 167652), (134880, 153681), (139095, 149024), (139710, 148368)]