20728574208

素因数分解:

$2^8\times 3^2\times {\mathrm{101}}^1\times {\mathrm{281}}^1\times {\mathrm{317}}^1$

素因数の和:721

約数の個数: 216

約数和(自身を含む): 60763202136

約数和(自身を除く): 40034627928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 101, 128, 144, 192, 202, 256, 281, 288, 303, 317, 384, 404, 562, 576, 606, 634, 768, 808, 843, 909, 951, 1124, 1152, 1212, 1268, 1616, 1686, 1818, 1902, 2248, 2304, 2424, 2529, 2536, 2853, 3232, 3372, 3636, 3804, 4496, 4848, 5058, 5072, 5706, 6464, 6744, 7272, 7608, 8992, 9696, 10116, 10144, 11412, 12928, 13488, 14544, 15216, 17984, 19392, 20232, 20288, 22824, 25856, 26976, 28381, 29088, 30432, 32017, 35968, 38784, 40464, 40576, 45648, 53952, 56762, 58176, 60864, 64034, 71936, 77568, 80928, 81152, 85143, 89077, 91296, 96051, 107904, 113524, 116352, 121728, 128068, 161856, 170286, 178154, 182592, 192102, 215808, 227048, 232704, 243456, 255429, 256136, 267231, 288153, 323712, 340572, 356308, 365184, 384204, 454096, 510858, 512272, 534462, 576306, 647424, 681144, 712616, 730368, 768408, 801693, 908192, 1021716, 1024544, 1068924, 1152612, 1362288, 1425232, 1536816, 1603386, 1816384, 2043432, 2049088, 2137848, 2305224, 2724576, 2850464, 3073632, 3206772, 3632768, 4086864, 4098176, 4275696, 4610448, 5449152, 5700928, 6147264, 6413544, 7265536, 8173728, 8196352, 8551392, 8996777, 9220896, 10898304, 11401856, 12294528, 12827088, 16347456, 17102784, 17993554, 18441792, 21796608, 22803712, 24589056, 25654176, 26990331, 32694912, 34205568, 35987108, 36883584, 51308352, 53980662, 65389824, 68411136, 71974216, 73767168, 80970993, 102616704, 107961324, 143948432, 161941986, 205233408, 215922648, 287896864, 323883972, 431845296, 575793728, 647767944, 863690592, 1151587456, 1295535888, 1727381184, 2303174912, 2591071776, 3454762368, 5182143552, 6909524736, 10364287104, 20728574208]

約数ペア:

[(1, 20728574208), (2, 10364287104), (3, 6909524736), (4, 5182143552), (6, 3454762368), (8, 2591071776), (9, 2303174912), (12, 1727381184), (16, 1295535888), (18, 1151587456), (24, 863690592), (32, 647767944), (36, 575793728), (48, 431845296), (64, 323883972), (72, 287896864), (96, 215922648), (101, 205233408), (128, 161941986), (144, 143948432), (192, 107961324), (202, 102616704), (256, 80970993), (281, 73767168), (288, 71974216), (303, 68411136), (317, 65389824), (384, 53980662), (404, 51308352), (562, 36883584), (576, 35987108), (606, 34205568), (634, 32694912), (768, 26990331), (808, 25654176), (843, 24589056), (909, 22803712), (951, 21796608), (1124, 18441792), (1152, 17993554), (1212, 17102784), (1268, 16347456), (1616, 12827088), (1686, 12294528), (1818, 11401856), (1902, 10898304), (2248, 9220896), (2304, 8996777), (2424, 8551392), (2529, 8196352), (2536, 8173728), (2853, 7265536), (3232, 6413544), (3372, 6147264), (3636, 5700928), (3804, 5449152), (4496, 4610448), (4848, 4275696), (5058, 4098176), (5072, 4086864), (5706, 3632768), (6464, 3206772), (6744, 3073632), (7272, 2850464), (7608, 2724576), (8992, 2305224), (9696, 2137848), (10116, 2049088), (10144, 2043432), (11412, 1816384), (12928, 1603386), (13488, 1536816), (14544, 1425232), (15216, 1362288), (17984, 1152612), (19392, 1068924), (20232, 1024544), (20288, 1021716), (22824, 908192), (25856, 801693), (26976, 768408), (28381, 730368), (29088, 712616), (30432, 681144), (32017, 647424), (35968, 576306), (38784, 534462), (40464, 512272), (40576, 510858), (45648, 454096), (53952, 384204), (56762, 365184), (58176, 356308), (60864, 340572), (64034, 323712), (71936, 288153), (77568, 267231), (80928, 256136), (81152, 255429), (85143, 243456), (89077, 232704), (91296, 227048), (96051, 215808), (107904, 192102), (113524, 182592), (116352, 178154), (121728, 170286), (128068, 161856)]