21086455680

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{8779}}^1$

素因数の和:8946

約数の個数: 256

約数和(自身を含む): 75227040000

約数和(自身を除く): 54140584320

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, 90, 96, 108, 120, 128, 135, 139, 144, 160, 180, 192, 216, 240, 270, 278, 288, 320, 360, 384, 417, 432, 480, 540, 556, 576, 640, 695, 720, 834, 864, 960, 1080, 1112, 1152, 1251, 1390, 1440, 1668, 1728, 1920, 2085, 2160, 2224, 2502, 2780, 2880, 3336, 3456, 3753, 4170, 4320, 4448, 5004, 5560, 5760, 6255, 6672, 7506, 8340, 8640, 8779, 8896, 10008, 11120, 12510, 13344, 15012, 16680, 17280, 17558, 17792, 18765, 20016, 22240, 25020, 26337, 26688, 30024, 33360, 35116, 37530, 40032, 43895, 44480, 50040, 52674, 53376, 60048, 66720, 70232, 75060, 79011, 80064, 87790, 88960, 100080, 105348, 120096, 131685, 133440, 140464, 150120, 158022, 160128, 175580, 200160, 210696, 237033, 240192, 263370, 266880, 280928, 300240, 316044, 351160, 395055, 400320, 421392, 474066, 480384, 526740, 561856, 600480, 632088, 702320, 790110, 800640, 842784, 948132, 1053480, 1123712, 1185165, 1200960, 1220281, 1264176, 1404640, 1580220, 1685568, 1896264, 2106960, 2370330, 2401920, 2440562, 2528352, 2809280, 3160440, 3371136, 3660843, 3792528, 4213920, 4740660, 4881124, 5056704, 5618560, 6101405, 6320880, 7321686, 7585056, 8427840, 9481320, 9762248, 10113408, 10982529, 12202810, 12641760, 14643372, 15170112, 16855680, 18304215, 18962640, 19524496, 21965058, 24405620, 25283520, 29286744, 30340224, 32947587, 36608430, 37925280, 39048992, 43930116, 48811240, 50567040, 54912645, 58573488, 65895174, 73216860, 75850560, 78097984, 87860232, 97622480, 109825290, 117146976, 131790348, 146433720, 151701120, 156195968, 164737935, 175720464, 195244960, 219650580, 234293952, 263580696, 292867440, 329475870, 351440928, 390489920, 439301160, 468587904, 527161392, 585734880, 658951740, 702881856, 780979840, 878602320, 1054322784, 1171469760, 1317903480, 1405763712, 1757204640, 2108645568, 2342939520, 2635806960, 3514409280, 4217291136, 5271613920, 7028818560, 10543227840, 21086455680]

約数ペア:

[(1, 21086455680), (2, 10543227840), (3, 7028818560), (4, 5271613920), (5, 4217291136), (6, 3514409280), (8, 2635806960), (9, 2342939520), (10, 2108645568), (12, 1757204640), (15, 1405763712), (16, 1317903480), (18, 1171469760), (20, 1054322784), (24, 878602320), (27, 780979840), (30, 702881856), (32, 658951740), (36, 585734880), (40, 527161392), (45, 468587904), (48, 439301160), (54, 390489920), (60, 351440928), (64, 329475870), (72, 292867440), (80, 263580696), (90, 234293952), (96, 219650580), (108, 195244960), (120, 175720464), (128, 164737935), (135, 156195968), (139, 151701120), (144, 146433720), (160, 131790348), (180, 117146976), (192, 109825290), (216, 97622480), (240, 87860232), (270, 78097984), (278, 75850560), (288, 73216860), (320, 65895174), (360, 58573488), (384, 54912645), (417, 50567040), (432, 48811240), (480, 43930116), (540, 39048992), (556, 37925280), (576, 36608430), (640, 32947587), (695, 30340224), (720, 29286744), (834, 25283520), (864, 24405620), (960, 21965058), (1080, 19524496), (1112, 18962640), (1152, 18304215), (1251, 16855680), (1390, 15170112), (1440, 14643372), (1668, 12641760), (1728, 12202810), (1920, 10982529), (2085, 10113408), (2160, 9762248), (2224, 9481320), (2502, 8427840), (2780, 7585056), (2880, 7321686), (3336, 6320880), (3456, 6101405), (3753, 5618560), (4170, 5056704), (4320, 4881124), (4448, 4740660), (5004, 4213920), (5560, 3792528), (5760, 3660843), (6255, 3371136), (6672, 3160440), (7506, 2809280), (8340, 2528352), (8640, 2440562), (8779, 2401920), (8896, 2370330), (10008, 2106960), (11120, 1896264), (12510, 1685568), (13344, 1580220), (15012, 1404640), (16680, 1264176), (17280, 1220281), (17558, 1200960), (17792, 1185165), (18765, 1123712), (20016, 1053480), (22240, 948132), (25020, 842784), (26337, 800640), (26688, 790110), (30024, 702320), (33360, 632088), (35116, 600480), (37530, 561856), (40032, 526740), (43895, 480384), (44480, 474066), (50040, 421392), (52674, 400320), (53376, 395055), (60048, 351160), (66720, 316044), (70232, 300240), (75060, 280928), (79011, 266880), (80064, 263370), (87790, 240192), (88960, 237033), (100080, 210696), (105348, 200160), (120096, 175580), (131685, 160128), (133440, 158022), (140464, 150120)]