257880000

素因数分解:

$2^6\times 3^1\times 5^4\times 7^1\times {\mathrm{307}}^1$

素因数の和:349

約数の個数: 280

約数和(自身を含む): 977587072

約数和(自身を除く): 719707072

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 64, 70, 75, 80, 84, 96, 100, 105, 112, 120, 125, 140, 150, 160, 168, 175, 192, 200, 210, 224, 240, 250, 280, 300, 307, 320, 336, 350, 375, 400, 420, 448, 480, 500, 525, 560, 600, 614, 625, 672, 700, 750, 800, 840, 875, 921, 960, 1000, 1050, 1120, 1200, 1228, 1250, 1344, 1400, 1500, 1535, 1600, 1680, 1750, 1842, 1875, 2000, 2100, 2149, 2240, 2400, 2456, 2500, 2625, 2800, 3000, 3070, 3360, 3500, 3684, 3750, 4000, 4200, 4298, 4375, 4605, 4800, 4912, 5000, 5250, 5600, 6000, 6140, 6447, 6720, 7000, 7368, 7500, 7675, 8000, 8400, 8596, 8750, 9210, 9824, 10000, 10500, 10745, 11200, 12000, 12280, 12894, 13125, 14000, 14736, 15000, 15350, 16800, 17192, 17500, 18420, 19648, 20000, 21000, 21490, 23025, 24000, 24560, 25788, 26250, 28000, 29472, 30000, 30700, 32235, 33600, 34384, 35000, 36840, 38375, 40000, 42000, 42980, 46050, 49120, 51576, 52500, 53725, 56000, 58944, 60000, 61400, 64470, 68768, 70000, 73680, 76750, 84000, 85960, 92100, 98240, 103152, 105000, 107450, 115125, 120000, 122800, 128940, 137536, 140000, 147360, 153500, 161175, 168000, 171920, 184200, 191875, 206304, 210000, 214900, 230250, 245600, 257880, 268625, 280000, 294720, 307000, 322350, 343840, 368400, 383750, 412608, 420000, 429800, 460500, 491200, 515760, 537250, 575625, 614000, 644700, 687680, 736800, 767500, 805875, 840000, 859600, 921000, 1031520, 1074500, 1151250, 1228000, 1289400, 1343125, 1473600, 1535000, 1611750, 1719200, 1842000, 2063040, 2149000, 2302500, 2456000, 2578800, 2686250, 3070000, 3223500, 3438400, 3684000, 4029375, 4298000, 4605000, 5157600, 5372500, 6140000, 6447000, 7368000, 8058750, 8596000, 9210000, 10315200, 10745000, 12280000, 12894000, 16117500, 17192000, 18420000, 21490000, 25788000, 32235000, 36840000, 42980000, 51576000, 64470000, 85960000, 128940000, 257880000]

約数ペア:

[(1, 257880000), (2, 128940000), (3, 85960000), (4, 64470000), (5, 51576000), (6, 42980000), (7, 36840000), (8, 32235000), (10, 25788000), (12, 21490000), (14, 18420000), (15, 17192000), (16, 16117500), (20, 12894000), (21, 12280000), (24, 10745000), (25, 10315200), (28, 9210000), (30, 8596000), (32, 8058750), (35, 7368000), (40, 6447000), (42, 6140000), (48, 5372500), (50, 5157600), (56, 4605000), (60, 4298000), (64, 4029375), (70, 3684000), (75, 3438400), (80, 3223500), (84, 3070000), (96, 2686250), (100, 2578800), (105, 2456000), (112, 2302500), (120, 2149000), (125, 2063040), (140, 1842000), (150, 1719200), (160, 1611750), (168, 1535000), (175, 1473600), (192, 1343125), (200, 1289400), (210, 1228000), (224, 1151250), (240, 1074500), (250, 1031520), (280, 921000), (300, 859600), (307, 840000), (320, 805875), (336, 767500), (350, 736800), (375, 687680), (400, 644700), (420, 614000), (448, 575625), (480, 537250), (500, 515760), (525, 491200), (560, 460500), (600, 429800), (614, 420000), (625, 412608), (672, 383750), (700, 368400), (750, 343840), (800, 322350), (840, 307000), (875, 294720), (921, 280000), (960, 268625), (1000, 257880), (1050, 245600), (1120, 230250), (1200, 214900), (1228, 210000), (1250, 206304), (1344, 191875), (1400, 184200), (1500, 171920), (1535, 168000), (1600, 161175), (1680, 153500), (1750, 147360), (1842, 140000), (1875, 137536), (2000, 128940), (2100, 122800), (2149, 120000), (2240, 115125), (2400, 107450), (2456, 105000), (2500, 103152), (2625, 98240), (2800, 92100), (3000, 85960), (3070, 84000), (3360, 76750), (3500, 73680), (3684, 70000), (3750, 68768), (4000, 64470), (4200, 61400), (4298, 60000), (4375, 58944), (4605, 56000), (4800, 53725), (4912, 52500), (5000, 51576), (5250, 49120), (5600, 46050), (6000, 42980), (6140, 42000), (6447, 40000), (6720, 38375), (7000, 36840), (7368, 35000), (7500, 34384), (7675, 33600), (8000, 32235), (8400, 30700), (8596, 30000), (8750, 29472), (9210, 28000), (9824, 26250), (10000, 25788), (10500, 24560), (10745, 24000), (11200, 23025), (12000, 21490), (12280, 21000), (12894, 20000), (13125, 19648), (14000, 18420), (14736, 17500), (15000, 17192), (15350, 16800)]