206551856

素因数分解:

$2^4\times 7^3\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:707

約数の個数: 80

約数和(自身を含む): 475118400

約数和(自身を除く): 268566544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 61, 98, 112, 122, 196, 244, 343, 392, 427, 488, 617, 686, 784, 854, 976, 1234, 1372, 1708, 2468, 2744, 2989, 3416, 4319, 4936, 5488, 5978, 6832, 8638, 9872, 11956, 17276, 20923, 23912, 30233, 34552, 37637, 41846, 47824, 60466, 69104, 75274, 83692, 120932, 150548, 167384, 211631, 241864, 263459, 301096, 334768, 423262, 483728, 526918, 602192, 846524, 1053836, 1693048, 1844213, 2107672, 3386096, 3688426, 4215344, 7376852, 12909491, 14753704, 25818982, 29507408, 51637964, 103275928, 206551856]

約数ペア:

[(1, 206551856), (2, 103275928), (4, 51637964), (7, 29507408), (8, 25818982), (14, 14753704), (16, 12909491), (28, 7376852), (49, 4215344), (56, 3688426), (61, 3386096), (98, 2107672), (112, 1844213), (122, 1693048), (196, 1053836), (244, 846524), (343, 602192), (392, 526918), (427, 483728), (488, 423262), (617, 334768), (686, 301096), (784, 263459), (854, 241864), (976, 211631), (1234, 167384), (1372, 150548), (1708, 120932), (2468, 83692), (2744, 75274), (2989, 69104), (3416, 60466), (4319, 47824), (4936, 41846), (5488, 37637), (5978, 34552), (6832, 30233), (8638, 23912), (9872, 20923), (11956, 17276)]