20919808000

素因数分解:

$2^{12}\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 416

約数和(自身を含む): 64400918400

約数和(自身を除く): 43481110400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 64, 65, 70, 80, 91, 100, 104, 112, 125, 128, 130, 140, 160, 175, 182, 200, 208, 224, 250, 256, 260, 280, 320, 325, 350, 364, 400, 416, 448, 449, 455, 500, 512, 520, 560, 640, 650, 700, 728, 800, 832, 875, 896, 898, 910, 1000, 1024, 1040, 1120, 1280, 1300, 1400, 1456, 1600, 1625, 1664, 1750, 1792, 1796, 1820, 2000, 2048, 2080, 2240, 2245, 2275, 2560, 2600, 2800, 2912, 3143, 3200, 3250, 3328, 3500, 3584, 3592, 3640, 4000, 4096, 4160, 4480, 4490, 4550, 5120, 5200, 5600, 5824, 5837, 6286, 6400, 6500, 6656, 7000, 7168, 7184, 7280, 8000, 8320, 8960, 8980, 9100, 10240, 10400, 11200, 11225, 11375, 11648, 11674, 12572, 12800, 13000, 13312, 14000, 14336, 14368, 14560, 15715, 16000, 16640, 17920, 17960, 18200, 20480, 20800, 22400, 22450, 22750, 23296, 23348, 25144, 25600, 26000, 26624, 28000, 28672, 28736, 29120, 29185, 31430, 32000, 33280, 35840, 35920, 36400, 40859, 41600, 44800, 44900, 45500, 46592, 46696, 50288, 51200, 52000, 53248, 56000, 56125, 57472, 58240, 58370, 62860, 64000, 66560, 71680, 71840, 72800, 78575, 81718, 83200, 89600, 89800, 91000, 93184, 93392, 100576, 102400, 104000, 112000, 112250, 114944, 116480, 116740, 125720, 128000, 133120, 143360, 143680, 145600, 145925, 157150, 163436, 166400, 179200, 179600, 182000, 186368, 186784, 201152, 204295, 208000, 224000, 224500, 229888, 232960, 233480, 251440, 256000, 266240, 287360, 291200, 291850, 314300, 326872, 332800, 358400, 359200, 364000, 372736, 373568, 392875, 402304, 408590, 416000, 448000, 449000, 459776, 465920, 466960, 502880, 512000, 574720, 582400, 583700, 628600, 653744, 665600, 716800, 718400, 728000, 729625, 747136, 785750, 804608, 817180, 832000, 896000, 898000, 919552, 931840, 933920, 1005760, 1021475, 1149440, 1164800, 1167400, 1257200, 1307488, 1331200, 1436800, 1456000, 1459250, 1494272, 1571500, 1609216, 1634360, 1664000, 1792000, 1796000, 1839104, 1863680, 1867840, 2011520, 2042950, 2298880, 2329600, 2334800, 2514400, 2614976, 2873600, 2912000, 2918500, 2988544, 3143000, 3218432, 3268720, 3328000, 3584000, 3592000, 3735680, 4023040, 4085900, 4597760, 4659200, 4669600, 5028800, 5107375, 5229952, 5747200, 5824000, 5837000, 5977088, 6286000, 6436864, 6537440, 6656000, 7184000, 7471360, 8046080, 8171800, 9195520, 9318400, 9339200, 10057600, 10214750, 10459904, 11494400, 11648000, 11674000, 11954176, 12572000, 12873728, 13074880, 14368000, 14942720, 16092160, 16343600, 18678400, 20115200, 20429500, 20919808, 22988800, 23296000, 23348000, 23908352, 25144000, 26149760, 28736000, 29885440, 32184320, 32687200, 37356800, 40230400, 40859000, 41839616, 45977600, 46592000, 46696000, 50288000, 52299520, 57472000, 59770880, 64368640, 65374400, 74713600, 80460800, 81718000, 83679232, 93392000, 100576000, 104599040, 114944000, 119541760, 130748800, 149427200, 160921600, 163436000, 167358464, 186784000, 201152000, 209198080, 229888000, 261497600, 298854400, 321843200, 326872000, 373568000, 402304000, 418396160, 522995200, 597708800, 653744000, 747136000, 804608000, 836792320, 1045990400, 1307488000, 1494272000, 1609216000, 2091980800, 2614976000, 2988544000, 4183961600, 5229952000, 10459904000, 20919808000]

約数ペア:

[(1, 20919808000), (2, 10459904000), (4, 5229952000), (5, 4183961600), (7, 2988544000), (8, 2614976000), (10, 2091980800), (13, 1609216000), (14, 1494272000), (16, 1307488000), (20, 1045990400), (25, 836792320), (26, 804608000), (28, 747136000), (32, 653744000), (35, 597708800), (40, 522995200), (50, 418396160), (52, 402304000), (56, 373568000), (64, 326872000), (65, 321843200), (70, 298854400), (80, 261497600), (91, 229888000), (100, 209198080), (104, 201152000), (112, 186784000), (125, 167358464), (128, 163436000), (130, 160921600), (140, 149427200), (160, 130748800), (175, 119541760), (182, 114944000), (200, 104599040), (208, 100576000), (224, 93392000), (250, 83679232), (256, 81718000), (260, 80460800), (280, 74713600), (320, 65374400), (325, 64368640), (350, 59770880), (364, 57472000), (400, 52299520), (416, 50288000), (448, 46696000), (449, 46592000), (455, 45977600), (500, 41839616), (512, 40859000), (520, 40230400), (560, 37356800), (640, 32687200), (650, 32184320), (700, 29885440), (728, 28736000), (800, 26149760), (832, 25144000), (875, 23908352), (896, 23348000), (898, 23296000), (910, 22988800), (1000, 20919808), (1024, 20429500), (1040, 20115200), (1120, 18678400), (1280, 16343600), (1300, 16092160), (1400, 14942720), (1456, 14368000), (1600, 13074880), (1625, 12873728), (1664, 12572000), (1750, 11954176), (1792, 11674000), (1796, 11648000), (1820, 11494400), (2000, 10459904), (2048, 10214750), (2080, 10057600), (2240, 9339200), (2245, 9318400), (2275, 9195520), (2560, 8171800), (2600, 8046080), (2800, 7471360), (2912, 7184000), (3143, 6656000), (3200, 6537440), (3250, 6436864), (3328, 6286000), (3500, 5977088), (3584, 5837000), (3592, 5824000), (3640, 5747200), (4000, 5229952), (4096, 5107375), (4160, 5028800), (4480, 4669600), (4490, 4659200), (4550, 4597760), (5120, 4085900), (5200, 4023040), (5600, 3735680), (5824, 3592000), (5837, 3584000), (6286, 3328000), (6400, 3268720), (6500, 3218432), (6656, 3143000), (7000, 2988544), (7168, 2918500), (7184, 2912000), (7280, 2873600), (8000, 2614976), (8320, 2514400), (8960, 2334800), (8980, 2329600), (9100, 2298880), (10240, 2042950), (10400, 2011520), (11200, 1867840), (11225, 1863680), (11375, 1839104), (11648, 1796000), (11674, 1792000), (12572, 1664000), (12800, 1634360), (13000, 1609216), (13312, 1571500), (14000, 1494272), (14336, 1459250), (14368, 1456000), (14560, 1436800), (15715, 1331200), (16000, 1307488), (16640, 1257200), (17920, 1167400), (17960, 1164800), (18200, 1149440), (20480, 1021475), (20800, 1005760), (22400, 933920), (22450, 931840), (22750, 919552), (23296, 898000), (23348, 896000), (25144, 832000), (25600, 817180), (26000, 804608), (26624, 785750), (28000, 747136), (28672, 729625), (28736, 728000), (29120, 718400), (29185, 716800), (31430, 665600), (32000, 653744), (33280, 628600), (35840, 583700), (35920, 582400), (36400, 574720), (40859, 512000), (41600, 502880), (44800, 466960), (44900, 465920), (45500, 459776), (46592, 449000), (46696, 448000), (50288, 416000), (51200, 408590), (52000, 402304), (53248, 392875), (56000, 373568), (56125, 372736), (57472, 364000), (58240, 359200), (58370, 358400), (62860, 332800), (64000, 326872), (66560, 314300), (71680, 291850), (71840, 291200), (72800, 287360), (78575, 266240), (81718, 256000), (83200, 251440), (89600, 233480), (89800, 232960), (91000, 229888), (93184, 224500), (93392, 224000), (100576, 208000), (102400, 204295), (104000, 201152), (112000, 186784), (112250, 186368), (114944, 182000), (116480, 179600), (116740, 179200), (125720, 166400), (128000, 163436), (133120, 157150), (143360, 145925), (143680, 145600)]