205212784

素因数分解:

$2^4\times 7^3\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:703

約数の個数: 80

約数和(自身を含む): 472043200

約数和(自身を除く): 266830416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 61, 98, 112, 122, 196, 244, 343, 392, 427, 488, 613, 686, 784, 854, 976, 1226, 1372, 1708, 2452, 2744, 2989, 3416, 4291, 4904, 5488, 5978, 6832, 8582, 9808, 11956, 17164, 20923, 23912, 30037, 34328, 37393, 41846, 47824, 60074, 68656, 74786, 83692, 120148, 149572, 167384, 210259, 240296, 261751, 299144, 334768, 420518, 480592, 523502, 598288, 841036, 1047004, 1682072, 1832257, 2094008, 3364144, 3664514, 4188016, 7329028, 12825799, 14658056, 25651598, 29316112, 51303196, 102606392, 205212784]

約数ペア:

[(1, 205212784), (2, 102606392), (4, 51303196), (7, 29316112), (8, 25651598), (14, 14658056), (16, 12825799), (28, 7329028), (49, 4188016), (56, 3664514), (61, 3364144), (98, 2094008), (112, 1832257), (122, 1682072), (196, 1047004), (244, 841036), (343, 598288), (392, 523502), (427, 480592), (488, 420518), (613, 334768), (686, 299144), (784, 261751), (854, 240296), (976, 210259), (1226, 167384), (1372, 149572), (1708, 120148), (2452, 83692), (2744, 74786), (2989, 68656), (3416, 60074), (4291, 47824), (4904, 41846), (5488, 37393), (5978, 34328), (6832, 30037), (8582, 23912), (9808, 20923), (11956, 17164)]