20930790400

素因数分解:

$2^{10}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:729

約数の個数: 264

約数和(自身を含む): 56484344840

約数和(自身を除く): 35553554440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 109, 128, 130, 160, 200, 208, 218, 256, 260, 320, 325, 400, 416, 436, 512, 520, 545, 577, 640, 650, 800, 832, 872, 1024, 1040, 1090, 1154, 1280, 1300, 1417, 1600, 1664, 1744, 2080, 2180, 2308, 2560, 2600, 2725, 2834, 2885, 3200, 3328, 3488, 4160, 4360, 4616, 5120, 5200, 5450, 5668, 5770, 6400, 6656, 6976, 7085, 7501, 8320, 8720, 9232, 10400, 10900, 11336, 11540, 12800, 13312, 13952, 14170, 14425, 15002, 16640, 17440, 18464, 20800, 21800, 22672, 23080, 25600, 27904, 28340, 28850, 30004, 33280, 34880, 35425, 36928, 37505, 41600, 43600, 45344, 46160, 55808, 56680, 57700, 60008, 62893, 66560, 69760, 70850, 73856, 75010, 83200, 87200, 90688, 92320, 111616, 113360, 115400, 120016, 125786, 139520, 141700, 147712, 150020, 166400, 174400, 181376, 184640, 187525, 226720, 230800, 240032, 251572, 279040, 283400, 295424, 300040, 314465, 332800, 348800, 362752, 369280, 375050, 453440, 461600, 480064, 503144, 558080, 566800, 590848, 600080, 628930, 697600, 725504, 738560, 750100, 817609, 906880, 923200, 960128, 1006288, 1133600, 1200160, 1257860, 1395200, 1451008, 1477120, 1500200, 1572325, 1635218, 1813760, 1846400, 1920256, 2012576, 2267200, 2400320, 2515720, 2790400, 2954240, 3000400, 3144650, 3270436, 3627520, 3692800, 3840512, 4025152, 4088045, 4534400, 4800640, 5031440, 6000800, 6289300, 6540872, 7255040, 7385600, 7681024, 8050304, 8176090, 9068800, 9601280, 10062880, 12001600, 12578600, 13081744, 14771200, 16100608, 16352180, 18137600, 19202560, 20125760, 20440225, 24003200, 25157200, 26163488, 32201216, 32704360, 36275200, 38405120, 40251520, 40880450, 48006400, 50314400, 52326976, 64402432, 65408720, 80503040, 81760900, 96012800, 100628800, 104653952, 130817440, 161006080, 163521800, 192025600, 201257600, 209307904, 261634880, 322012160, 327043600, 402515200, 418615808, 523269760, 654087200, 805030400, 837231616, 1046539520, 1308174400, 1610060800, 2093079040, 2616348800, 4186158080, 5232697600, 10465395200, 20930790400]

約数ペア:

[(1, 20930790400), (2, 10465395200), (4, 5232697600), (5, 4186158080), (8, 2616348800), (10, 2093079040), (13, 1610060800), (16, 1308174400), (20, 1046539520), (25, 837231616), (26, 805030400), (32, 654087200), (40, 523269760), (50, 418615808), (52, 402515200), (64, 327043600), (65, 322012160), (80, 261634880), (100, 209307904), (104, 201257600), (109, 192025600), (128, 163521800), (130, 161006080), (160, 130817440), (200, 104653952), (208, 100628800), (218, 96012800), (256, 81760900), (260, 80503040), (320, 65408720), (325, 64402432), (400, 52326976), (416, 50314400), (436, 48006400), (512, 40880450), (520, 40251520), (545, 38405120), (577, 36275200), (640, 32704360), (650, 32201216), (800, 26163488), (832, 25157200), (872, 24003200), (1024, 20440225), (1040, 20125760), (1090, 19202560), (1154, 18137600), (1280, 16352180), (1300, 16100608), (1417, 14771200), (1600, 13081744), (1664, 12578600), (1744, 12001600), (2080, 10062880), (2180, 9601280), (2308, 9068800), (2560, 8176090), (2600, 8050304), (2725, 7681024), (2834, 7385600), (2885, 7255040), (3200, 6540872), (3328, 6289300), (3488, 6000800), (4160, 5031440), (4360, 4800640), (4616, 4534400), (5120, 4088045), (5200, 4025152), (5450, 3840512), (5668, 3692800), (5770, 3627520), (6400, 3270436), (6656, 3144650), (6976, 3000400), (7085, 2954240), (7501, 2790400), (8320, 2515720), (8720, 2400320), (9232, 2267200), (10400, 2012576), (10900, 1920256), (11336, 1846400), (11540, 1813760), (12800, 1635218), (13312, 1572325), (13952, 1500200), (14170, 1477120), (14425, 1451008), (15002, 1395200), (16640, 1257860), (17440, 1200160), (18464, 1133600), (20800, 1006288), (21800, 960128), (22672, 923200), (23080, 906880), (25600, 817609), (27904, 750100), (28340, 738560), (28850, 725504), (30004, 697600), (33280, 628930), (34880, 600080), (35425, 590848), (36928, 566800), (37505, 558080), (41600, 503144), (43600, 480064), (45344, 461600), (46160, 453440), (55808, 375050), (56680, 369280), (57700, 362752), (60008, 348800), (62893, 332800), (66560, 314465), (69760, 300040), (70850, 295424), (73856, 283400), (75010, 279040), (83200, 251572), (87200, 240032), (90688, 230800), (92320, 226720), (111616, 187525), (113360, 184640), (115400, 181376), (120016, 174400), (125786, 166400), (139520, 150020), (141700, 147712)]