280784000

素因数分解:

$2^7\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:168

約数の個数: 256

約数和(自身を含む): 840153600

約数和(自身を除く): 559369600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 64, 70, 80, 92, 100, 109, 112, 115, 125, 128, 140, 160, 161, 175, 184, 200, 218, 224, 230, 250, 280, 320, 322, 350, 368, 400, 436, 448, 460, 500, 545, 560, 575, 640, 644, 700, 736, 763, 800, 805, 872, 875, 896, 920, 1000, 1090, 1120, 1150, 1288, 1400, 1472, 1526, 1600, 1610, 1744, 1750, 1840, 2000, 2180, 2240, 2300, 2507, 2576, 2725, 2800, 2875, 2944, 3052, 3200, 3220, 3488, 3500, 3680, 3815, 4000, 4025, 4360, 4480, 4600, 5014, 5152, 5450, 5600, 5750, 6104, 6440, 6976, 7000, 7360, 7630, 8000, 8050, 8720, 9200, 10028, 10304, 10900, 11200, 11500, 12208, 12535, 12880, 13625, 13952, 14000, 14720, 15260, 16000, 16100, 17440, 17549, 18400, 19075, 20056, 20125, 20608, 21800, 22400, 23000, 24416, 25070, 25760, 27250, 28000, 30520, 32200, 34880, 35098, 36800, 38150, 40112, 40250, 43600, 46000, 48832, 50140, 51520, 54500, 56000, 61040, 62675, 64400, 69760, 70196, 73600, 76300, 80224, 80500, 87200, 87745, 92000, 95375, 97664, 100280, 103040, 109000, 112000, 122080, 125350, 128800, 140392, 152600, 160448, 161000, 174400, 175490, 184000, 190750, 200560, 218000, 244160, 250700, 257600, 280784, 305200, 313375, 320896, 322000, 348800, 350980, 368000, 381500, 401120, 436000, 438725, 488320, 501400, 515200, 561568, 610400, 626750, 644000, 701960, 763000, 802240, 872000, 877450, 1002800, 1123136, 1220800, 1253500, 1288000, 1403920, 1526000, 1604480, 1744000, 1754900, 2005600, 2193625, 2246272, 2441600, 2507000, 2576000, 2807840, 3052000, 3509800, 4011200, 4387250, 5014000, 5615680, 6104000, 7019600, 8022400, 8774500, 10028000, 11231360, 12208000, 14039200, 17549000, 20056000, 28078400, 35098000, 40112000, 56156800, 70196000, 140392000, 280784000]

約数ペア:

[(1, 280784000), (2, 140392000), (4, 70196000), (5, 56156800), (7, 40112000), (8, 35098000), (10, 28078400), (14, 20056000), (16, 17549000), (20, 14039200), (23, 12208000), (25, 11231360), (28, 10028000), (32, 8774500), (35, 8022400), (40, 7019600), (46, 6104000), (50, 5615680), (56, 5014000), (64, 4387250), (70, 4011200), (80, 3509800), (92, 3052000), (100, 2807840), (109, 2576000), (112, 2507000), (115, 2441600), (125, 2246272), (128, 2193625), (140, 2005600), (160, 1754900), (161, 1744000), (175, 1604480), (184, 1526000), (200, 1403920), (218, 1288000), (224, 1253500), (230, 1220800), (250, 1123136), (280, 1002800), (320, 877450), (322, 872000), (350, 802240), (368, 763000), (400, 701960), (436, 644000), (448, 626750), (460, 610400), (500, 561568), (545, 515200), (560, 501400), (575, 488320), (640, 438725), (644, 436000), (700, 401120), (736, 381500), (763, 368000), (800, 350980), (805, 348800), (872, 322000), (875, 320896), (896, 313375), (920, 305200), (1000, 280784), (1090, 257600), (1120, 250700), (1150, 244160), (1288, 218000), (1400, 200560), (1472, 190750), (1526, 184000), (1600, 175490), (1610, 174400), (1744, 161000), (1750, 160448), (1840, 152600), (2000, 140392), (2180, 128800), (2240, 125350), (2300, 122080), (2507, 112000), (2576, 109000), (2725, 103040), (2800, 100280), (2875, 97664), (2944, 95375), (3052, 92000), (3200, 87745), (3220, 87200), (3488, 80500), (3500, 80224), (3680, 76300), (3815, 73600), (4000, 70196), (4025, 69760), (4360, 64400), (4480, 62675), (4600, 61040), (5014, 56000), (5152, 54500), (5450, 51520), (5600, 50140), (5750, 48832), (6104, 46000), (6440, 43600), (6976, 40250), (7000, 40112), (7360, 38150), (7630, 36800), (8000, 35098), (8050, 34880), (8720, 32200), (9200, 30520), (10028, 28000), (10304, 27250), (10900, 25760), (11200, 25070), (11500, 24416), (12208, 23000), (12535, 22400), (12880, 21800), (13625, 20608), (13952, 20125), (14000, 20056), (14720, 19075), (15260, 18400), (16000, 17549), (16100, 17440)]