331390448

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{249541}}^1$

素因数の和:249632

約数の個数: 20

約数和(自身を含む): 649807368

約数和(自身を除く): 318416920

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 249541, 499082, 998164, 1996328, 3992656, 20711903, 41423806, 82847612, 165695224, 331390448]

約数ペア:

[(1, 331390448), (2, 165695224), (4, 82847612), (8, 41423806), (16, 20711903), (83, 3992656), (166, 1996328), (332, 998164), (664, 499082), (1328, 249541)]