12784880

素因数分解:

$2^4\times 5^1\times {\mathrm{159811}}^1$

素因数の和:159824

約数の個数: 20

約数和(自身を含む): 29725032

約数和(自身を除く): 16940152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159811, 319622, 639244, 799055, 1278488, 1598110, 2556976, 3196220, 6392440, 12784880]

約数ペア:

[(1, 12784880), (2, 6392440), (4, 3196220), (5, 2556976), (8, 1598110), (10, 1278488), (16, 799055), (20, 639244), (40, 319622), (80, 159811)]