257245440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2161}}^1$

素因数の和:2216

約数の個数: 144

約数和(自身を含む): 848472576

約数和(自身を除く): 591227136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 768, 930, 960, 992, 1240, 1280, 1488, 1860, 1920, 1984, 2161, 2480, 2976, 3720, 3840, 3968, 4322, 4960, 5952, 6483, 7440, 7936, 8644, 9920, 10805, 11904, 12966, 14880, 17288, 19840, 21610, 23808, 25932, 29760, 32415, 34576, 39680, 43220, 51864, 59520, 64830, 66991, 69152, 86440, 103728, 119040, 129660, 133982, 138304, 172880, 200973, 207456, 259320, 267964, 276608, 334955, 345760, 401946, 414912, 518640, 535928, 553216, 669910, 691520, 803892, 829824, 1004865, 1037280, 1071856, 1339820, 1383040, 1607784, 1659648, 2009730, 2074560, 2143712, 2679640, 2766080, 3215568, 4019460, 4149120, 4287424, 5359280, 6431136, 8038920, 8298240, 8574848, 10718560, 12862272, 16077840, 17149696, 21437120, 25724544, 32155680, 42874240, 51449088, 64311360, 85748480, 128622720, 257245440]

約数ペア:

[(1, 257245440), (2, 128622720), (3, 85748480), (4, 64311360), (5, 51449088), (6, 42874240), (8, 32155680), (10, 25724544), (12, 21437120), (15, 17149696), (16, 16077840), (20, 12862272), (24, 10718560), (30, 8574848), (31, 8298240), (32, 8038920), (40, 6431136), (48, 5359280), (60, 4287424), (62, 4149120), (64, 4019460), (80, 3215568), (93, 2766080), (96, 2679640), (120, 2143712), (124, 2074560), (128, 2009730), (155, 1659648), (160, 1607784), (186, 1383040), (192, 1339820), (240, 1071856), (248, 1037280), (256, 1004865), (310, 829824), (320, 803892), (372, 691520), (384, 669910), (465, 553216), (480, 535928), (496, 518640), (620, 414912), (640, 401946), (744, 345760), (768, 334955), (930, 276608), (960, 267964), (992, 259320), (1240, 207456), (1280, 200973), (1488, 172880), (1860, 138304), (1920, 133982), (1984, 129660), (2161, 119040), (2480, 103728), (2976, 86440), (3720, 69152), (3840, 66991), (3968, 64830), (4322, 59520), (4960, 51864), (5952, 43220), (6483, 39680), (7440, 34576), (7936, 32415), (8644, 29760), (9920, 25932), (10805, 23808), (11904, 21610), (12966, 19840), (14880, 17288)]