20990697728

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{6301}}^1$

素因数の和:6361

約数の個数: 216

約数和(自身を含む): 56574616896

約数和(自身を除く): 35583919168

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 52, 56, 64, 77, 88, 91, 104, 112, 128, 143, 154, 169, 176, 182, 208, 224, 256, 286, 308, 338, 352, 364, 416, 448, 572, 616, 676, 704, 728, 832, 896, 1001, 1144, 1183, 1232, 1352, 1408, 1456, 1664, 1792, 1859, 2002, 2288, 2366, 2464, 2704, 2816, 2912, 3328, 3718, 4004, 4576, 4732, 4928, 5408, 5824, 6301, 7436, 8008, 9152, 9464, 9856, 10816, 11648, 12602, 13013, 14872, 16016, 18304, 18928, 19712, 21632, 23296, 25204, 26026, 29744, 32032, 36608, 37856, 43264, 44107, 50408, 52052, 59488, 64064, 69311, 75712, 81913, 88214, 100816, 104104, 118976, 128128, 138622, 151424, 163826, 176428, 201632, 208208, 237952, 256256, 277244, 302848, 327652, 352856, 403264, 416416, 475904, 485177, 554488, 573391, 655304, 705712, 806528, 832832, 901043, 970354, 1064869, 1108976, 1146782, 1310608, 1411424, 1613056, 1665664, 1802086, 1940708, 2129738, 2217952, 2293564, 2621216, 2822848, 3331328, 3604172, 3881416, 4259476, 4435904, 4587128, 5242432, 5645696, 6307301, 7208344, 7454083, 7762832, 8518952, 8871808, 9174256, 10484864, 11291392, 11713559, 12614602, 14416688, 14908166, 15525664, 17037904, 17743616, 18348512, 20969728, 23427118, 25229204, 28833376, 29816332, 31051328, 34075808, 36697024, 46854236, 50458408, 57666752, 59632664, 62102656, 68151616, 73394048, 81994913, 93708472, 100916816, 115333504, 119265328, 124205312, 136303232, 146788096, 163989826, 187416944, 201833632, 230667008, 238530656, 272606464, 327979652, 374833888, 403667264, 477061312, 655959304, 749667776, 807334528, 954122624, 1311918608, 1499335552, 1614669056, 1908245248, 2623837216, 2998671104, 5247674432, 10495348864, 20990697728]

約数ペア:

[(1, 20990697728), (2, 10495348864), (4, 5247674432), (7, 2998671104), (8, 2623837216), (11, 1908245248), (13, 1614669056), (14, 1499335552), (16, 1311918608), (22, 954122624), (26, 807334528), (28, 749667776), (32, 655959304), (44, 477061312), (52, 403667264), (56, 374833888), (64, 327979652), (77, 272606464), (88, 238530656), (91, 230667008), (104, 201833632), (112, 187416944), (128, 163989826), (143, 146788096), (154, 136303232), (169, 124205312), (176, 119265328), (182, 115333504), (208, 100916816), (224, 93708472), (256, 81994913), (286, 73394048), (308, 68151616), (338, 62102656), (352, 59632664), (364, 57666752), (416, 50458408), (448, 46854236), (572, 36697024), (616, 34075808), (676, 31051328), (704, 29816332), (728, 28833376), (832, 25229204), (896, 23427118), (1001, 20969728), (1144, 18348512), (1183, 17743616), (1232, 17037904), (1352, 15525664), (1408, 14908166), (1456, 14416688), (1664, 12614602), (1792, 11713559), (1859, 11291392), (2002, 10484864), (2288, 9174256), (2366, 8871808), (2464, 8518952), (2704, 7762832), (2816, 7454083), (2912, 7208344), (3328, 6307301), (3718, 5645696), (4004, 5242432), (4576, 4587128), (4732, 4435904), (4928, 4259476), (5408, 3881416), (5824, 3604172), (6301, 3331328), (7436, 2822848), (8008, 2621216), (9152, 2293564), (9464, 2217952), (9856, 2129738), (10816, 1940708), (11648, 1802086), (12602, 1665664), (13013, 1613056), (14872, 1411424), (16016, 1310608), (18304, 1146782), (18928, 1108976), (19712, 1064869), (21632, 970354), (23296, 901043), (25204, 832832), (26026, 806528), (29744, 705712), (32032, 655304), (36608, 573391), (37856, 554488), (43264, 485177), (44107, 475904), (50408, 416416), (52052, 403264), (59488, 352856), (64064, 327652), (69311, 302848), (75712, 277244), (81913, 256256), (88214, 237952), (100816, 208208), (104104, 201632), (118976, 176428), (128128, 163826), (138622, 151424)]