13240880

素因数分解:

$2^4\times 5^1\times {\mathrm{165511}}^1$

素因数の和:165524

約数の個数: 20

約数和(自身を含む): 30785232

約数和(自身を除く): 17544352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 165511, 331022, 662044, 827555, 1324088, 1655110, 2648176, 3310220, 6620440, 13240880]

約数ペア:

[(1, 13240880), (2, 6620440), (4, 3310220), (5, 2648176), (8, 1655110), (10, 1324088), (16, 827555), (20, 662044), (40, 331022), (80, 165511)]