257290560

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:430

約数の個数: 224

約数和(自身を含む): 920008320

約数和(自身を除く): 662717760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 97, 108, 120, 135, 144, 160, 180, 192, 194, 216, 240, 270, 288, 291, 307, 320, 360, 388, 432, 480, 485, 540, 576, 582, 614, 720, 776, 864, 873, 921, 960, 970, 1080, 1164, 1228, 1440, 1455, 1535, 1552, 1728, 1746, 1842, 1940, 2160, 2328, 2456, 2619, 2763, 2880, 2910, 3070, 3104, 3492, 3684, 3880, 4320, 4365, 4605, 4656, 4912, 5238, 5526, 5820, 6140, 6208, 6984, 7368, 7760, 8289, 8640, 8730, 9210, 9312, 9824, 10476, 11052, 11640, 12280, 13095, 13815, 13968, 14736, 15520, 16578, 17460, 18420, 18624, 19648, 20952, 22104, 23280, 24560, 26190, 27630, 27936, 29472, 29779, 31040, 33156, 34920, 36840, 41445, 41904, 44208, 46560, 49120, 52380, 55260, 55872, 58944, 59558, 66312, 69840, 73680, 82890, 83808, 88416, 89337, 93120, 98240, 104760, 110520, 119116, 132624, 139680, 147360, 148895, 165780, 167616, 176832, 178674, 209520, 221040, 238232, 265248, 268011, 279360, 294720, 297790, 331560, 357348, 419040, 442080, 446685, 476464, 530496, 536022, 595580, 663120, 714696, 804033, 838080, 884160, 893370, 952928, 1072044, 1191160, 1326240, 1340055, 1429392, 1608066, 1786740, 1905856, 2144088, 2382320, 2652480, 2680110, 2858784, 3216132, 3573480, 4020165, 4288176, 4764640, 5360220, 5717568, 6432264, 7146960, 8040330, 8576352, 9529280, 10720440, 12864528, 14293920, 16080660, 17152704, 21440880, 25729056, 28587840, 32161320, 42881760, 51458112, 64322640, 85763520, 128645280, 257290560]

約数ペア:

[(1, 257290560), (2, 128645280), (3, 85763520), (4, 64322640), (5, 51458112), (6, 42881760), (8, 32161320), (9, 28587840), (10, 25729056), (12, 21440880), (15, 17152704), (16, 16080660), (18, 14293920), (20, 12864528), (24, 10720440), (27, 9529280), (30, 8576352), (32, 8040330), (36, 7146960), (40, 6432264), (45, 5717568), (48, 5360220), (54, 4764640), (60, 4288176), (64, 4020165), (72, 3573480), (80, 3216132), (90, 2858784), (96, 2680110), (97, 2652480), (108, 2382320), (120, 2144088), (135, 1905856), (144, 1786740), (160, 1608066), (180, 1429392), (192, 1340055), (194, 1326240), (216, 1191160), (240, 1072044), (270, 952928), (288, 893370), (291, 884160), (307, 838080), (320, 804033), (360, 714696), (388, 663120), (432, 595580), (480, 536022), (485, 530496), (540, 476464), (576, 446685), (582, 442080), (614, 419040), (720, 357348), (776, 331560), (864, 297790), (873, 294720), (921, 279360), (960, 268011), (970, 265248), (1080, 238232), (1164, 221040), (1228, 209520), (1440, 178674), (1455, 176832), (1535, 167616), (1552, 165780), (1728, 148895), (1746, 147360), (1842, 139680), (1940, 132624), (2160, 119116), (2328, 110520), (2456, 104760), (2619, 98240), (2763, 93120), (2880, 89337), (2910, 88416), (3070, 83808), (3104, 82890), (3492, 73680), (3684, 69840), (3880, 66312), (4320, 59558), (4365, 58944), (4605, 55872), (4656, 55260), (4912, 52380), (5238, 49120), (5526, 46560), (5820, 44208), (6140, 41904), (6208, 41445), (6984, 36840), (7368, 34920), (7760, 33156), (8289, 31040), (8640, 29779), (8730, 29472), (9210, 27936), (9312, 27630), (9824, 26190), (10476, 24560), (11052, 23280), (11640, 22104), (12280, 20952), (13095, 19648), (13815, 18624), (13968, 18420), (14736, 17460), (15520, 16578)]