989969128

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{881}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 2011806720

約数和(自身を除く): 1021837592

約数列:

[1, 2, 4, 8, 23, 31, 46, 62, 92, 124, 184, 197, 248, 394, 713, 788, 881, 1426, 1576, 1762, 2852, 3524, 4531, 5704, 6107, 7048, 9062, 12214, 18124, 20263, 24428, 27311, 36248, 40526, 48856, 54622, 81052, 109244, 140461, 162104, 173557, 218488, 280922, 347114, 561844, 628153, 694228, 1123688, 1256306, 1388456, 2512612, 3991811, 5025224, 5380267, 7983622, 10760534, 15967244, 21521068, 31934488, 43042136, 123746141, 247492282, 494984564, 989969128]

約数ペア:

[(1, 989969128), (2, 494984564), (4, 247492282), (8, 123746141), (23, 43042136), (31, 31934488), (46, 21521068), (62, 15967244), (92, 10760534), (124, 7983622), (184, 5380267), (197, 5025224), (248, 3991811), (394, 2512612), (713, 1388456), (788, 1256306), (881, 1123688), (1426, 694228), (1576, 628153), (1762, 561844), (2852, 347114), (3524, 280922), (4531, 218488), (5704, 173557), (6107, 162104), (7048, 140461), (9062, 109244), (12214, 81052), (18124, 54622), (20263, 48856), (24428, 40526), (27311, 36248)]