16199725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 21748608

約数和(自身を除く): 5548883

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 811, 1175, 3995, 4055, 13787, 19975, 20275, 38117, 68935, 190585, 344675, 647989, 952925, 3239945, 16199725]

約数ペア:

[(1, 16199725), (5, 3239945), (17, 952925), (25, 647989), (47, 344675), (85, 190585), (235, 68935), (425, 38117), (799, 20275), (811, 19975), (1175, 13787), (3995, 4055)]