39540040

素因数分解:

$2^3\times 5^1\times {\mathrm{988501}}^1$

素因数の和:988512

約数の個数: 16

約数和(自身を含む): 88965180

約数和(自身を除く): 49425140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 988501, 1977002, 3954004, 4942505, 7908008, 9885010, 19770020, 39540040]

約数ペア:

[(1, 39540040), (2, 19770020), (4, 9885010), (5, 7908008), (8, 4942505), (10, 3954004), (20, 1977002), (40, 988501)]