256979800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:123

約数の個数: 288

約数和(自身を含む): 789636960

約数和(自身を除く): 532657160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 37, 40, 41, 44, 50, 55, 56, 70, 74, 77, 82, 88, 100, 110, 121, 140, 148, 154, 164, 175, 185, 200, 205, 220, 242, 259, 275, 280, 287, 296, 308, 328, 350, 370, 385, 407, 410, 440, 451, 484, 518, 550, 574, 605, 616, 700, 740, 770, 814, 820, 847, 902, 925, 968, 1025, 1036, 1100, 1148, 1210, 1295, 1400, 1435, 1480, 1517, 1540, 1628, 1640, 1694, 1804, 1850, 1925, 2035, 2050, 2072, 2200, 2255, 2296, 2420, 2590, 2849, 2870, 3025, 3034, 3080, 3157, 3256, 3388, 3608, 3700, 3850, 4070, 4100, 4235, 4477, 4510, 4840, 4961, 5180, 5698, 5740, 6050, 6068, 6314, 6475, 6776, 7175, 7400, 7585, 7700, 8140, 8200, 8470, 8954, 9020, 9922, 10175, 10360, 10619, 11275, 11396, 11480, 12100, 12136, 12628, 12950, 14245, 14350, 15170, 15400, 15785, 16280, 16687, 16940, 17908, 18040, 19844, 20350, 21175, 21238, 22385, 22550, 22792, 24200, 24805, 25256, 25900, 28490, 28700, 30340, 31339, 31570, 33374, 33880, 34727, 35816, 37925, 39688, 40700, 42350, 42476, 44770, 45100, 49610, 51800, 53095, 56980, 57400, 60680, 62678, 63140, 66748, 69454, 71225, 75850, 78925, 81400, 83435, 84700, 84952, 89540, 90200, 99220, 106190, 111925, 113960, 116809, 124025, 125356, 126280, 133496, 138908, 142450, 151700, 156695, 157850, 166870, 169400, 173635, 179080, 183557, 198440, 212380, 223850, 233618, 248050, 250712, 265475, 277816, 284900, 303400, 313390, 315700, 333740, 347270, 367114, 417175, 424760, 447700, 467236, 496100, 530950, 569800, 584045, 626780, 631400, 667480, 694540, 734228, 783475, 834350, 868175, 895400, 917785, 934472, 992200, 1061900, 1168090, 1253560, 1284899, 1389080, 1468456, 1566950, 1668700, 1736350, 1835570, 2123800, 2336180, 2569798, 2920225, 3133900, 3337400, 3472700, 3671140, 4588925, 4672360, 5139596, 5840450, 6267800, 6424495, 6945400, 7342280, 9177850, 10279192, 11680900, 12848990, 18355700, 23361800, 25697980, 32122475, 36711400, 51395960, 64244950, 128489900, 256979800]

約数ペア:

[(1, 256979800), (2, 128489900), (4, 64244950), (5, 51395960), (7, 36711400), (8, 32122475), (10, 25697980), (11, 23361800), (14, 18355700), (20, 12848990), (22, 11680900), (25, 10279192), (28, 9177850), (35, 7342280), (37, 6945400), (40, 6424495), (41, 6267800), (44, 5840450), (50, 5139596), (55, 4672360), (56, 4588925), (70, 3671140), (74, 3472700), (77, 3337400), (82, 3133900), (88, 2920225), (100, 2569798), (110, 2336180), (121, 2123800), (140, 1835570), (148, 1736350), (154, 1668700), (164, 1566950), (175, 1468456), (185, 1389080), (200, 1284899), (205, 1253560), (220, 1168090), (242, 1061900), (259, 992200), (275, 934472), (280, 917785), (287, 895400), (296, 868175), (308, 834350), (328, 783475), (350, 734228), (370, 694540), (385, 667480), (407, 631400), (410, 626780), (440, 584045), (451, 569800), (484, 530950), (518, 496100), (550, 467236), (574, 447700), (605, 424760), (616, 417175), (700, 367114), (740, 347270), (770, 333740), (814, 315700), (820, 313390), (847, 303400), (902, 284900), (925, 277816), (968, 265475), (1025, 250712), (1036, 248050), (1100, 233618), (1148, 223850), (1210, 212380), (1295, 198440), (1400, 183557), (1435, 179080), (1480, 173635), (1517, 169400), (1540, 166870), (1628, 157850), (1640, 156695), (1694, 151700), (1804, 142450), (1850, 138908), (1925, 133496), (2035, 126280), (2050, 125356), (2072, 124025), (2200, 116809), (2255, 113960), (2296, 111925), (2420, 106190), (2590, 99220), (2849, 90200), (2870, 89540), (3025, 84952), (3034, 84700), (3080, 83435), (3157, 81400), (3256, 78925), (3388, 75850), (3608, 71225), (3700, 69454), (3850, 66748), (4070, 63140), (4100, 62678), (4235, 60680), (4477, 57400), (4510, 56980), (4840, 53095), (4961, 51800), (5180, 49610), (5698, 45100), (5740, 44770), (6050, 42476), (6068, 42350), (6314, 40700), (6475, 39688), (6776, 37925), (7175, 35816), (7400, 34727), (7585, 33880), (7700, 33374), (8140, 31570), (8200, 31339), (8470, 30340), (8954, 28700), (9020, 28490), (9922, 25900), (10175, 25256), (10360, 24805), (10619, 24200), (11275, 22792), (11396, 22550), (11480, 22385), (12100, 21238), (12136, 21175), (12628, 20350), (12950, 19844), (14245, 18040), (14350, 17908), (15170, 16940), (15400, 16687), (15785, 16280)]