20884292008

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{691}}^1\times {\mathrm{1979}}^1$

素因数の和:2782

約数の個数: 64

約数和(自身を含む): 41433638400

約数和(自身を除く): 20549346392

約数列:

[1, 2, 4, 8, 23, 46, 83, 92, 166, 184, 332, 664, 691, 1382, 1909, 1979, 2764, 3818, 3958, 5528, 7636, 7916, 15272, 15832, 15893, 31786, 45517, 57353, 63572, 91034, 114706, 127144, 164257, 182068, 229412, 328514, 364136, 458824, 657028, 1314056, 1319119, 1367489, 2638238, 2734978, 3777911, 5276476, 5469956, 7555822, 10552952, 10939912, 15111644, 30223288, 31452247, 62904494, 113501587, 125808988, 227003174, 251617976, 454006348, 908012696, 2610536501, 5221073002, 10442146004, 20884292008]

約数ペア:

[(1, 20884292008), (2, 10442146004), (4, 5221073002), (8, 2610536501), (23, 908012696), (46, 454006348), (83, 251617976), (92, 227003174), (166, 125808988), (184, 113501587), (332, 62904494), (664, 31452247), (691, 30223288), (1382, 15111644), (1909, 10939912), (1979, 10552952), (2764, 7555822), (3818, 5469956), (3958, 5276476), (5528, 3777911), (7636, 2734978), (7916, 2638238), (15272, 1367489), (15832, 1319119), (15893, 1314056), (31786, 657028), (45517, 458824), (57353, 364136), (63572, 328514), (91034, 229412), (114706, 182068), (127144, 164257)]