20516078520

素因数分解:

$2^3\times 3^4\times 5^1\times 7^3\times {\mathrm{18461}}^1$

素因数の和:18505

約数の個数: 320

約数和(自身を含む): 80420472000

約数和(自身を除く): 59904393480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 343, 360, 378, 392, 405, 420, 441, 490, 504, 540, 567, 588, 630, 648, 686, 735, 756, 810, 840, 882, 945, 980, 1029, 1080, 1134, 1176, 1260, 1323, 1372, 1470, 1512, 1620, 1715, 1764, 1890, 1960, 2058, 2205, 2268, 2520, 2646, 2744, 2835, 2940, 3087, 3240, 3430, 3528, 3780, 3969, 4116, 4410, 4536, 5145, 5292, 5670, 5880, 6174, 6615, 6860, 7560, 7938, 8232, 8820, 9261, 10290, 10584, 11340, 12348, 13230, 13720, 15435, 15876, 17640, 18461, 18522, 19845, 20580, 22680, 24696, 26460, 27783, 30870, 31752, 36922, 37044, 39690, 41160, 46305, 52920, 55383, 55566, 61740, 73844, 74088, 79380, 92305, 92610, 110766, 111132, 123480, 129227, 138915, 147688, 158760, 166149, 184610, 185220, 221532, 222264, 258454, 276915, 277830, 332298, 369220, 370440, 387681, 443064, 498447, 516908, 553830, 555660, 646135, 664596, 738440, 775362, 830745, 904589, 996894, 1033816, 1107660, 1111320, 1163043, 1292270, 1329192, 1495341, 1550724, 1661490, 1809178, 1938405, 1993788, 2215320, 2326086, 2492235, 2584540, 2713767, 2990682, 3101448, 3322980, 3489129, 3618356, 3876810, 3987576, 4522945, 4652172, 4984470, 5169080, 5427534, 5815215, 5981364, 6332123, 6645960, 6978258, 7236712, 7476705, 7753620, 8141301, 9045890, 9304344, 9968940, 10467387, 10855068, 11630430, 11962728, 12664246, 13568835, 13956516, 14953410, 15507240, 16282602, 17445645, 18091780, 18996369, 19937880, 20934774, 21710136, 23260860, 24423903, 25328492, 27137670, 27913032, 29906820, 31660615, 32565204, 34891290, 36183560, 37992738, 40706505, 41869548, 46521720, 48847806, 50656984, 52336935, 54275340, 56989107, 59813640, 63321230, 65130408, 69782580, 73271709, 75985476, 81413010, 83739096, 94981845, 97695612, 104673870, 108550680, 113978214, 122119515, 126642460, 139565160, 146543418, 151970952, 162826020, 170967321, 189963690, 195391224, 209347740, 227956428, 244239030, 253284920, 284945535, 293086836, 325652040, 341934642, 366358545, 379927380, 418695480, 455912856, 488478060, 512901963, 569891070, 586173672, 683869284, 732717090, 759854760, 854836605, 976956120, 1025803926, 1139782140, 1367738568, 1465434180, 1709673210, 2051607852, 2279564280, 2564509815, 2930868360, 3419346420, 4103215704, 5129019630, 6838692840, 10258039260, 20516078520]

約数ペア:

[(1, 20516078520), (2, 10258039260), (3, 6838692840), (4, 5129019630), (5, 4103215704), (6, 3419346420), (7, 2930868360), (8, 2564509815), (9, 2279564280), (10, 2051607852), (12, 1709673210), (14, 1465434180), (15, 1367738568), (18, 1139782140), (20, 1025803926), (21, 976956120), (24, 854836605), (27, 759854760), (28, 732717090), (30, 683869284), (35, 586173672), (36, 569891070), (40, 512901963), (42, 488478060), (45, 455912856), (49, 418695480), (54, 379927380), (56, 366358545), (60, 341934642), (63, 325652040), (70, 293086836), (72, 284945535), (81, 253284920), (84, 244239030), (90, 227956428), (98, 209347740), (105, 195391224), (108, 189963690), (120, 170967321), (126, 162826020), (135, 151970952), (140, 146543418), (147, 139565160), (162, 126642460), (168, 122119515), (180, 113978214), (189, 108550680), (196, 104673870), (210, 97695612), (216, 94981845), (245, 83739096), (252, 81413010), (270, 75985476), (280, 73271709), (294, 69782580), (315, 65130408), (324, 63321230), (343, 59813640), (360, 56989107), (378, 54275340), (392, 52336935), (405, 50656984), (420, 48847806), (441, 46521720), (490, 41869548), (504, 40706505), (540, 37992738), (567, 36183560), (588, 34891290), (630, 32565204), (648, 31660615), (686, 29906820), (735, 27913032), (756, 27137670), (810, 25328492), (840, 24423903), (882, 23260860), (945, 21710136), (980, 20934774), (1029, 19937880), (1080, 18996369), (1134, 18091780), (1176, 17445645), (1260, 16282602), (1323, 15507240), (1372, 14953410), (1470, 13956516), (1512, 13568835), (1620, 12664246), (1715, 11962728), (1764, 11630430), (1890, 10855068), (1960, 10467387), (2058, 9968940), (2205, 9304344), (2268, 9045890), (2520, 8141301), (2646, 7753620), (2744, 7476705), (2835, 7236712), (2940, 6978258), (3087, 6645960), (3240, 6332123), (3430, 5981364), (3528, 5815215), (3780, 5427534), (3969, 5169080), (4116, 4984470), (4410, 4652172), (4536, 4522945), (5145, 3987576), (5292, 3876810), (5670, 3618356), (5880, 3489129), (6174, 3322980), (6615, 3101448), (6860, 2990682), (7560, 2713767), (7938, 2584540), (8232, 2492235), (8820, 2326086), (9261, 2215320), (10290, 1993788), (10584, 1938405), (11340, 1809178), (12348, 1661490), (13230, 1550724), (13720, 1495341), (15435, 1329192), (15876, 1292270), (17640, 1163043), (18461, 1111320), (18522, 1107660), (19845, 1033816), (20580, 996894), (22680, 904589), (24696, 830745), (26460, 775362), (27783, 738440), (30870, 664596), (31752, 646135), (36922, 555660), (37044, 553830), (39690, 516908), (41160, 498447), (46305, 443064), (52920, 387681), (55383, 370440), (55566, 369220), (61740, 332298), (73844, 277830), (74088, 276915), (79380, 258454), (92305, 222264), (92610, 221532), (110766, 185220), (111132, 184610), (123480, 166149), (129227, 158760), (138915, 147688)]