19813231872

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1806

約数の個数: 432

約数和(自身を含む): 70364356608

約数和(自身を除く): 50551124736

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 28, 31, 32, 36, 42, 46, 48, 56, 62, 63, 64, 69, 72, 84, 92, 93, 96, 112, 124, 126, 128, 138, 144, 161, 168, 184, 186, 192, 207, 217, 224, 248, 252, 256, 276, 279, 288, 322, 336, 368, 372, 384, 414, 434, 448, 483, 496, 504, 552, 558, 576, 644, 651, 672, 713, 736, 744, 768, 828, 868, 896, 966, 992, 1008, 1104, 1116, 1152, 1288, 1302, 1344, 1426, 1449, 1472, 1488, 1656, 1723, 1736, 1792, 1932, 1953, 1984, 2016, 2139, 2208, 2232, 2304, 2576, 2604, 2688, 2852, 2898, 2944, 2976, 3312, 3446, 3472, 3864, 3906, 3968, 4032, 4278, 4416, 4464, 4991, 5152, 5169, 5208, 5376, 5704, 5796, 5888, 5952, 6417, 6624, 6892, 6944, 7728, 7812, 7936, 8064, 8556, 8832, 8928, 9982, 10304, 10338, 10416, 11408, 11592, 11904, 12061, 12834, 13248, 13784, 13888, 14973, 15456, 15507, 15624, 16128, 17112, 17664, 17856, 19964, 20608, 20676, 20832, 22816, 23184, 23808, 24122, 25668, 26496, 27568, 27776, 29946, 30912, 31014, 31248, 34224, 35712, 36183, 39629, 39928, 41216, 41352, 41664, 44919, 45632, 46368, 48244, 51336, 52992, 53413, 55136, 55552, 59892, 61824, 62028, 62496, 68448, 71424, 72366, 79258, 79856, 82704, 83328, 89838, 91264, 92736, 96488, 102672, 106826, 108549, 110272, 118887, 119784, 123648, 124056, 124992, 136896, 144732, 158516, 159712, 160239, 165408, 166656, 179676, 182528, 185472, 192976, 205344, 213652, 217098, 220544, 237774, 239568, 248112, 249984, 273792, 277403, 289464, 317032, 319424, 320478, 330816, 356661, 359352, 370944, 373891, 385952, 410688, 427304, 434196, 441088, 475548, 479136, 480717, 496224, 499968, 547584, 554806, 578928, 634064, 638848, 640956, 661632, 713322, 718704, 747782, 771904, 821376, 832209, 854608, 868392, 951096, 958272, 961434, 992448, 1109612, 1121673, 1157856, 1228499, 1268128, 1277696, 1281912, 1323264, 1426644, 1437408, 1495564, 1543808, 1642752, 1664418, 1709216, 1736784, 1902192, 1916544, 1922868, 1984896, 2219224, 2243346, 2315712, 2456998, 2496627, 2536256, 2563824, 2853288, 2874816, 2991128, 3087616, 3328836, 3365019, 3418432, 3473568, 3685497, 3804384, 3833088, 3845736, 3969792, 4438448, 4486692, 4631424, 4913996, 4993254, 5072512, 5127648, 5706576, 5749632, 5982256, 6657672, 6730038, 6836864, 6947136, 7370994, 7608768, 7691472, 8599493, 8876896, 8973384, 9262848, 9827992, 9986508, 10145024, 10255296, 11056491, 11413152, 11499264, 11964512, 13315344, 13460076, 13673728, 13894272, 14741988, 15217536, 15382944, 17198986, 17753792, 17946768, 19655984, 19973016, 20510592, 22112982, 22826304, 23929024, 25798479, 26630688, 26920152, 27788544, 29483976, 30435072, 30765888, 34397972, 35507584, 35893536, 39311968, 39946032, 41021184, 44225964, 45652608, 47858048, 51596958, 53261376, 53840304, 58967952, 61531776, 68795944, 71015168, 71787072, 77395437, 78623936, 79892064, 88451928, 91305216, 95716096, 103193916, 106522752, 107680608, 117935904, 123063552, 137591888, 143574144, 154790874, 157247872, 159784128, 176903856, 206387832, 213045504, 215361216, 235871808, 275183776, 287148288, 309581748, 314495744, 319568256, 353807712, 412775664, 430722432, 471743616, 550367552, 619163496, 639136512, 707615424, 825551328, 861444864, 943487232, 1100735104, 1238326992, 1415230848, 1651102656, 2201470208, 2476653984, 2830461696, 3302205312, 4953307968, 6604410624, 9906615936, 19813231872]

約数ペア:

[(1, 19813231872), (2, 9906615936), (3, 6604410624), (4, 4953307968), (6, 3302205312), (7, 2830461696), (8, 2476653984), (9, 2201470208), (12, 1651102656), (14, 1415230848), (16, 1238326992), (18, 1100735104), (21, 943487232), (23, 861444864), (24, 825551328), (28, 707615424), (31, 639136512), (32, 619163496), (36, 550367552), (42, 471743616), (46, 430722432), (48, 412775664), (56, 353807712), (62, 319568256), (63, 314495744), (64, 309581748), (69, 287148288), (72, 275183776), (84, 235871808), (92, 215361216), (93, 213045504), (96, 206387832), (112, 176903856), (124, 159784128), (126, 157247872), (128, 154790874), (138, 143574144), (144, 137591888), (161, 123063552), (168, 117935904), (184, 107680608), (186, 106522752), (192, 103193916), (207, 95716096), (217, 91305216), (224, 88451928), (248, 79892064), (252, 78623936), (256, 77395437), (276, 71787072), (279, 71015168), (288, 68795944), (322, 61531776), (336, 58967952), (368, 53840304), (372, 53261376), (384, 51596958), (414, 47858048), (434, 45652608), (448, 44225964), (483, 41021184), (496, 39946032), (504, 39311968), (552, 35893536), (558, 35507584), (576, 34397972), (644, 30765888), (651, 30435072), (672, 29483976), (713, 27788544), (736, 26920152), (744, 26630688), (768, 25798479), (828, 23929024), (868, 22826304), (896, 22112982), (966, 20510592), (992, 19973016), (1008, 19655984), (1104, 17946768), (1116, 17753792), (1152, 17198986), (1288, 15382944), (1302, 15217536), (1344, 14741988), (1426, 13894272), (1449, 13673728), (1472, 13460076), (1488, 13315344), (1656, 11964512), (1723, 11499264), (1736, 11413152), (1792, 11056491), (1932, 10255296), (1953, 10145024), (1984, 9986508), (2016, 9827992), (2139, 9262848), (2208, 8973384), (2232, 8876896), (2304, 8599493), (2576, 7691472), (2604, 7608768), (2688, 7370994), (2852, 6947136), (2898, 6836864), (2944, 6730038), (2976, 6657672), (3312, 5982256), (3446, 5749632), (3472, 5706576), (3864, 5127648), (3906, 5072512), (3968, 4993254), (4032, 4913996), (4278, 4631424), (4416, 4486692), (4464, 4438448), (4991, 3969792), (5152, 3845736), (5169, 3833088), (5208, 3804384), (5376, 3685497), (5704, 3473568), (5796, 3418432), (5888, 3365019), (5952, 3328836), (6417, 3087616), (6624, 2991128), (6892, 2874816), (6944, 2853288), (7728, 2563824), (7812, 2536256), (7936, 2496627), (8064, 2456998), (8556, 2315712), (8832, 2243346), (8928, 2219224), (9982, 1984896), (10304, 1922868), (10338, 1916544), (10416, 1902192), (11408, 1736784), (11592, 1709216), (11904, 1664418), (12061, 1642752), (12834, 1543808), (13248, 1495564), (13784, 1437408), (13888, 1426644), (14973, 1323264), (15456, 1281912), (15507, 1277696), (15624, 1268128), (16128, 1228499), (17112, 1157856), (17664, 1121673), (17856, 1109612), (19964, 992448), (20608, 961434), (20676, 958272), (20832, 951096), (22816, 868392), (23184, 854608), (23808, 832209), (24122, 821376), (25668, 771904), (26496, 747782), (27568, 718704), (27776, 713322), (29946, 661632), (30912, 640956), (31014, 638848), (31248, 634064), (34224, 578928), (35712, 554806), (36183, 547584), (39629, 499968), (39928, 496224), (41216, 480717), (41352, 479136), (41664, 475548), (44919, 441088), (45632, 434196), (46368, 427304), (48244, 410688), (51336, 385952), (52992, 373891), (53413, 370944), (55136, 359352), (55552, 356661), (59892, 330816), (61824, 320478), (62028, 319424), (62496, 317032), (68448, 289464), (71424, 277403), (72366, 273792), (79258, 249984), (79856, 248112), (82704, 239568), (83328, 237774), (89838, 220544), (91264, 217098), (92736, 213652), (96488, 205344), (102672, 192976), (106826, 185472), (108549, 182528), (110272, 179676), (118887, 166656), (119784, 165408), (123648, 160239), (124056, 159712), (124992, 158516), (136896, 144732)]