20518207488

素因数分解:

$2^{16}\times 3^2\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:890

約数の個数: 204

約数和(自身を含む): 60727815720

約数和(自身を除く): 40209608232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 43, 48, 64, 72, 86, 96, 128, 129, 144, 172, 192, 256, 258, 288, 344, 384, 387, 512, 516, 576, 688, 768, 774, 809, 1024, 1032, 1152, 1376, 1536, 1548, 1618, 2048, 2064, 2304, 2427, 2752, 3072, 3096, 3236, 4096, 4128, 4608, 4854, 5504, 6144, 6192, 6472, 7281, 8192, 8256, 9216, 9708, 11008, 12288, 12384, 12944, 14562, 16384, 16512, 18432, 19416, 22016, 24576, 24768, 25888, 29124, 32768, 33024, 34787, 36864, 38832, 44032, 49152, 49536, 51776, 58248, 65536, 66048, 69574, 73728, 77664, 88064, 98304, 99072, 103552, 104361, 116496, 132096, 139148, 147456, 155328, 176128, 196608, 198144, 207104, 208722, 232992, 264192, 278296, 294912, 310656, 313083, 352256, 396288, 414208, 417444, 465984, 528384, 556592, 589824, 621312, 626166, 704512, 792576, 828416, 834888, 931968, 1056768, 1113184, 1242624, 1252332, 1409024, 1585152, 1656832, 1669776, 1863936, 2113536, 2226368, 2485248, 2504664, 2818048, 3170304, 3313664, 3339552, 3727872, 4227072, 4452736, 4970496, 5009328, 6340608, 6627328, 6679104, 7455744, 8454144, 8905472, 9940992, 10018656, 12681216, 13254656, 13358208, 14911488, 17810944, 19881984, 20037312, 25362432, 26509312, 26716416, 29822976, 35621888, 39763968, 40074624, 53018624, 53432832, 59645952, 71243776, 79527936, 80149248, 106865664, 119291904, 142487552, 159055872, 160298496, 213731328, 238583808, 284975104, 320596992, 427462656, 477167616, 569950208, 641193984, 854925312, 1139900416, 1282387968, 1709850624, 2279800832, 2564775936, 3419701248, 5129551872, 6839402496, 10259103744, 20518207488]

約数ペア:

[(1, 20518207488), (2, 10259103744), (3, 6839402496), (4, 5129551872), (6, 3419701248), (8, 2564775936), (9, 2279800832), (12, 1709850624), (16, 1282387968), (18, 1139900416), (24, 854925312), (32, 641193984), (36, 569950208), (43, 477167616), (48, 427462656), (64, 320596992), (72, 284975104), (86, 238583808), (96, 213731328), (128, 160298496), (129, 159055872), (144, 142487552), (172, 119291904), (192, 106865664), (256, 80149248), (258, 79527936), (288, 71243776), (344, 59645952), (384, 53432832), (387, 53018624), (512, 40074624), (516, 39763968), (576, 35621888), (688, 29822976), (768, 26716416), (774, 26509312), (809, 25362432), (1024, 20037312), (1032, 19881984), (1152, 17810944), (1376, 14911488), (1536, 13358208), (1548, 13254656), (1618, 12681216), (2048, 10018656), (2064, 9940992), (2304, 8905472), (2427, 8454144), (2752, 7455744), (3072, 6679104), (3096, 6627328), (3236, 6340608), (4096, 5009328), (4128, 4970496), (4608, 4452736), (4854, 4227072), (5504, 3727872), (6144, 3339552), (6192, 3313664), (6472, 3170304), (7281, 2818048), (8192, 2504664), (8256, 2485248), (9216, 2226368), (9708, 2113536), (11008, 1863936), (12288, 1669776), (12384, 1656832), (12944, 1585152), (14562, 1409024), (16384, 1252332), (16512, 1242624), (18432, 1113184), (19416, 1056768), (22016, 931968), (24576, 834888), (24768, 828416), (25888, 792576), (29124, 704512), (32768, 626166), (33024, 621312), (34787, 589824), (36864, 556592), (38832, 528384), (44032, 465984), (49152, 417444), (49536, 414208), (51776, 396288), (58248, 352256), (65536, 313083), (66048, 310656), (69574, 294912), (73728, 278296), (77664, 264192), (88064, 232992), (98304, 208722), (99072, 207104), (103552, 198144), (104361, 196608), (116496, 176128), (132096, 155328), (139148, 147456)]