66655280

素因数分解:

$2^4\times 5^1\times {\mathrm{833191}}^1$

素因数の和:833204

約数の個数: 20

約数和(自身を含む): 154973712

約数和(自身を除く): 88318432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 833191, 1666382, 3332764, 4165955, 6665528, 8331910, 13331056, 16663820, 33327640, 66655280]

約数ペア:

[(1, 66655280), (2, 33327640), (4, 16663820), (5, 13331056), (8, 8331910), (10, 6665528), (16, 4165955), (20, 3332764), (40, 1666382), (80, 833191)]