28490000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 200

約数和(自身を含む): 88321728

約数和(自身を除く): 59831728

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 37, 40, 44, 50, 55, 56, 70, 74, 77, 80, 88, 100, 110, 112, 125, 140, 148, 154, 175, 176, 185, 200, 220, 250, 259, 275, 280, 296, 308, 350, 370, 385, 400, 407, 440, 500, 518, 550, 560, 592, 616, 625, 700, 740, 770, 814, 875, 880, 925, 1000, 1036, 1100, 1232, 1250, 1295, 1375, 1400, 1480, 1540, 1628, 1750, 1850, 1925, 2000, 2035, 2072, 2200, 2500, 2590, 2750, 2800, 2849, 2960, 3080, 3256, 3500, 3700, 3850, 4070, 4144, 4375, 4400, 4625, 5000, 5180, 5500, 5698, 6160, 6475, 6512, 6875, 7000, 7400, 7700, 8140, 8750, 9250, 9625, 10000, 10175, 10360, 11000, 11396, 12950, 13750, 14000, 14245, 14800, 15400, 16280, 17500, 18500, 19250, 20350, 20720, 22000, 22792, 23125, 25900, 27500, 28490, 30800, 32375, 32560, 35000, 37000, 38500, 40700, 45584, 46250, 48125, 50875, 51800, 55000, 56980, 64750, 70000, 71225, 74000, 77000, 81400, 92500, 96250, 101750, 103600, 110000, 113960, 129500, 142450, 154000, 161875, 162800, 185000, 192500, 203500, 227920, 254375, 259000, 284900, 323750, 356125, 370000, 385000, 407000, 508750, 518000, 569800, 647500, 712250, 770000, 814000, 1017500, 1139600, 1295000, 1424500, 1780625, 2035000, 2590000, 2849000, 3561250, 4070000, 5698000, 7122500, 14245000, 28490000]

約数ペア:

[(1, 28490000), (2, 14245000), (4, 7122500), (5, 5698000), (7, 4070000), (8, 3561250), (10, 2849000), (11, 2590000), (14, 2035000), (16, 1780625), (20, 1424500), (22, 1295000), (25, 1139600), (28, 1017500), (35, 814000), (37, 770000), (40, 712250), (44, 647500), (50, 569800), (55, 518000), (56, 508750), (70, 407000), (74, 385000), (77, 370000), (80, 356125), (88, 323750), (100, 284900), (110, 259000), (112, 254375), (125, 227920), (140, 203500), (148, 192500), (154, 185000), (175, 162800), (176, 161875), (185, 154000), (200, 142450), (220, 129500), (250, 113960), (259, 110000), (275, 103600), (280, 101750), (296, 96250), (308, 92500), (350, 81400), (370, 77000), (385, 74000), (400, 71225), (407, 70000), (440, 64750), (500, 56980), (518, 55000), (550, 51800), (560, 50875), (592, 48125), (616, 46250), (625, 45584), (700, 40700), (740, 38500), (770, 37000), (814, 35000), (875, 32560), (880, 32375), (925, 30800), (1000, 28490), (1036, 27500), (1100, 25900), (1232, 23125), (1250, 22792), (1295, 22000), (1375, 20720), (1400, 20350), (1480, 19250), (1540, 18500), (1628, 17500), (1750, 16280), (1850, 15400), (1925, 14800), (2000, 14245), (2035, 14000), (2072, 13750), (2200, 12950), (2500, 11396), (2590, 11000), (2750, 10360), (2800, 10175), (2849, 10000), (2960, 9625), (3080, 9250), (3256, 8750), (3500, 8140), (3700, 7700), (3850, 7400), (4070, 7000), (4144, 6875), (4375, 6512), (4400, 6475), (4625, 6160), (5000, 5698), (5180, 5500)]