19785872

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 39747456

約数和(自身を除く): 19961584

約数列:

[1, 2, 4, 8, 16, 47, 83, 94, 166, 188, 317, 332, 376, 634, 664, 752, 1268, 1328, 2536, 3901, 5072, 7802, 14899, 15604, 26311, 29798, 31208, 52622, 59596, 62416, 105244, 119192, 210488, 238384, 420976, 1236617, 2473234, 4946468, 9892936, 19785872]

約数ペア:

[(1, 19785872), (2, 9892936), (4, 4946468), (8, 2473234), (16, 1236617), (47, 420976), (83, 238384), (94, 210488), (166, 119192), (188, 105244), (317, 62416), (332, 59596), (376, 52622), (634, 31208), (664, 29798), (752, 26311), (1268, 15604), (1328, 14899), (2536, 7802), (3901, 5072)]