647524880

素因数分解:

$2^4\times 5^1\times {\mathrm{8094061}}^1$

素因数の和:8094074

約数の個数: 20

約数和(自身を含む): 1505495532

約数和(自身を除く): 857970652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8094061, 16188122, 32376244, 40470305, 64752488, 80940610, 129504976, 161881220, 323762440, 647524880]

約数ペア:

[(1, 647524880), (2, 323762440), (4, 161881220), (5, 129504976), (8, 80940610), (10, 64752488), (16, 40470305), (20, 32376244), (40, 16188122), (80, 8094061)]