1997981440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1009}}^1$

素因数の和:1067

約数の個数: 288

約数和(自身を含む): 6242866560

約数和(自身を除く): 4244885120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 32, 34, 35, 40, 52, 56, 64, 65, 68, 70, 80, 85, 91, 104, 112, 119, 128, 130, 136, 140, 160, 170, 182, 208, 221, 224, 238, 256, 260, 272, 280, 320, 340, 364, 416, 442, 448, 455, 476, 520, 544, 560, 595, 640, 680, 728, 832, 884, 896, 910, 952, 1009, 1040, 1088, 1105, 1120, 1190, 1280, 1360, 1456, 1547, 1664, 1768, 1792, 1820, 1904, 2018, 2080, 2176, 2210, 2240, 2380, 2720, 2912, 3094, 3328, 3536, 3640, 3808, 4036, 4160, 4352, 4420, 4480, 4760, 5045, 5440, 5824, 6188, 7063, 7072, 7280, 7616, 7735, 8072, 8320, 8840, 8960, 9520, 10090, 10880, 11648, 12376, 13117, 14126, 14144, 14560, 15232, 15470, 16144, 16640, 17153, 17680, 19040, 20180, 21760, 23296, 24752, 26234, 28252, 28288, 29120, 30464, 30940, 32288, 34306, 35315, 35360, 38080, 40360, 49504, 52468, 56504, 56576, 58240, 61880, 64576, 65585, 68612, 70630, 70720, 76160, 80720, 85765, 91819, 99008, 104936, 113008, 116480, 120071, 123760, 129152, 131170, 137224, 141260, 141440, 152320, 161440, 171530, 183638, 198016, 209872, 222989, 226016, 240142, 247520, 258304, 262340, 274448, 282520, 282880, 322880, 343060, 367276, 396032, 419744, 445978, 452032, 459095, 480284, 495040, 524680, 548896, 565040, 600355, 645760, 686120, 734552, 839488, 891956, 904064, 918190, 960568, 990080, 1049360, 1097792, 1114945, 1130080, 1200710, 1291520, 1372240, 1469104, 1560923, 1678976, 1783912, 1808128, 1836380, 1921136, 1980160, 2098720, 2195584, 2229890, 2260160, 2401420, 2744480, 2938208, 3121846, 3357952, 3567824, 3672760, 3842272, 4197440, 4391168, 4459780, 4520320, 4802840, 5488960, 5876416, 6243692, 7135648, 7345520, 7684544, 7804615, 8394880, 8919560, 9040640, 9605680, 10977920, 11752832, 12487384, 14271296, 14691040, 15369088, 15609230, 16789760, 17839120, 19211360, 21955840, 23505664, 24974768, 28542592, 29382080, 30738176, 31218460, 35678240, 38422720, 49949536, 57085184, 58764160, 62436920, 71356480, 76845440, 99899072, 117528320, 124873840, 142712960, 153690880, 199798144, 249747680, 285425920, 399596288, 499495360, 998990720, 1997981440]

約数ペア:

[(1, 1997981440), (2, 998990720), (4, 499495360), (5, 399596288), (7, 285425920), (8, 249747680), (10, 199798144), (13, 153690880), (14, 142712960), (16, 124873840), (17, 117528320), (20, 99899072), (26, 76845440), (28, 71356480), (32, 62436920), (34, 58764160), (35, 57085184), (40, 49949536), (52, 38422720), (56, 35678240), (64, 31218460), (65, 30738176), (68, 29382080), (70, 28542592), (80, 24974768), (85, 23505664), (91, 21955840), (104, 19211360), (112, 17839120), (119, 16789760), (128, 15609230), (130, 15369088), (136, 14691040), (140, 14271296), (160, 12487384), (170, 11752832), (182, 10977920), (208, 9605680), (221, 9040640), (224, 8919560), (238, 8394880), (256, 7804615), (260, 7684544), (272, 7345520), (280, 7135648), (320, 6243692), (340, 5876416), (364, 5488960), (416, 4802840), (442, 4520320), (448, 4459780), (455, 4391168), (476, 4197440), (520, 3842272), (544, 3672760), (560, 3567824), (595, 3357952), (640, 3121846), (680, 2938208), (728, 2744480), (832, 2401420), (884, 2260160), (896, 2229890), (910, 2195584), (952, 2098720), (1009, 1980160), (1040, 1921136), (1088, 1836380), (1105, 1808128), (1120, 1783912), (1190, 1678976), (1280, 1560923), (1360, 1469104), (1456, 1372240), (1547, 1291520), (1664, 1200710), (1768, 1130080), (1792, 1114945), (1820, 1097792), (1904, 1049360), (2018, 990080), (2080, 960568), (2176, 918190), (2210, 904064), (2240, 891956), (2380, 839488), (2720, 734552), (2912, 686120), (3094, 645760), (3328, 600355), (3536, 565040), (3640, 548896), (3808, 524680), (4036, 495040), (4160, 480284), (4352, 459095), (4420, 452032), (4480, 445978), (4760, 419744), (5045, 396032), (5440, 367276), (5824, 343060), (6188, 322880), (7063, 282880), (7072, 282520), (7280, 274448), (7616, 262340), (7735, 258304), (8072, 247520), (8320, 240142), (8840, 226016), (8960, 222989), (9520, 209872), (10090, 198016), (10880, 183638), (11648, 171530), (12376, 161440), (13117, 152320), (14126, 141440), (14144, 141260), (14560, 137224), (15232, 131170), (15470, 129152), (16144, 123760), (16640, 120071), (17153, 116480), (17680, 113008), (19040, 104936), (20180, 99008), (21760, 91819), (23296, 85765), (24752, 80720), (26234, 76160), (28252, 70720), (28288, 70630), (29120, 68612), (30464, 65585), (30940, 64576), (32288, 61880), (34306, 58240), (35315, 56576), (35360, 56504), (38080, 52468), (40360, 49504)]