20516506560

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647617}}^1$

素因数の和:647651

約数の個数: 168

約数和(自身を含む): 76983646896

約数和(自身を除く): 56467140336

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, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 660, 704, 720, 792, 880, 960, 990, 1056, 1320, 1440, 1584, 1760, 1980, 2112, 2640, 2880, 3168, 3520, 3960, 5280, 6336, 7920, 10560, 15840, 31680, 647617, 1295234, 1942851, 2590468, 3238085, 3885702, 5180936, 5828553, 6476170, 7123787, 7771404, 9714255, 10361872, 11657106, 12952340, 14247574, 15542808, 19428510, 20723744, 21371361, 23314212, 25904680, 28495148, 29142765, 31085616, 35618935, 38857020, 41447488, 42742722, 46628424, 51809360, 56990296, 58285530, 62171232, 64114083, 71237870, 77714040, 85485444, 93256848, 103618720, 106856805, 113980592, 116571060, 124342464, 128228166, 142475740, 155428080, 170970888, 186513696, 207237440, 213713610, 227961184, 233142120, 256456332, 284951480, 310856160, 320570415, 341941776, 373027392, 427427220, 455922368, 466284240, 512912664, 569902960, 621712320, 641140830, 683883552, 854854440, 932568480, 1025825328, 1139805920, 1282281660, 1367767104, 1709708880, 1865136960, 2051650656, 2279611840, 2564563320, 3419417760, 4103301312, 5129126640, 6838835520, 10258253280, 20516506560]

約数ペア:

[(1, 20516506560), (2, 10258253280), (3, 6838835520), (4, 5129126640), (5, 4103301312), (6, 3419417760), (8, 2564563320), (9, 2279611840), (10, 2051650656), (11, 1865136960), (12, 1709708880), (15, 1367767104), (16, 1282281660), (18, 1139805920), (20, 1025825328), (22, 932568480), (24, 854854440), (30, 683883552), (32, 641140830), (33, 621712320), (36, 569902960), (40, 512912664), (44, 466284240), (45, 455922368), (48, 427427220), (55, 373027392), (60, 341941776), (64, 320570415), (66, 310856160), (72, 284951480), (80, 256456332), (88, 233142120), (90, 227961184), (96, 213713610), (99, 207237440), (110, 186513696), (120, 170970888), (132, 155428080), (144, 142475740), (160, 128228166), (165, 124342464), (176, 116571060), (180, 113980592), (192, 106856805), (198, 103618720), (220, 93256848), (240, 85485444), (264, 77714040), (288, 71237870), (320, 64114083), (330, 62171232), (352, 58285530), (360, 56990296), (396, 51809360), (440, 46628424), (480, 42742722), (495, 41447488), (528, 38857020), (576, 35618935), (660, 31085616), (704, 29142765), (720, 28495148), (792, 25904680), (880, 23314212), (960, 21371361), (990, 20723744), (1056, 19428510), (1320, 15542808), (1440, 14247574), (1584, 12952340), (1760, 11657106), (1980, 10361872), (2112, 9714255), (2640, 7771404), (2880, 7123787), (3168, 6476170), (3520, 5828553), (3960, 5180936), (5280, 3885702), (6336, 3238085), (7920, 2590468), (10560, 1942851), (15840, 1295234), (31680, 647617)]