13258660

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1031}}^1$

素因数の和:1683

約数の個数: 24

約数和(自身を含む): 27913536

約数和(自身を除く): 14654876

約数列:

[1, 2, 4, 5, 10, 20, 643, 1031, 1286, 2062, 2572, 3215, 4124, 5155, 6430, 10310, 12860, 20620, 662933, 1325866, 2651732, 3314665, 6629330, 13258660]

約数ペア:

[(1, 13258660), (2, 6629330), (4, 3314665), (5, 2651732), (10, 1325866), (20, 662933), (643, 20620), (1031, 12860), (1286, 10310), (2062, 6430), (2572, 5155), (3215, 4124)]