12720170

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2833}}^1$

素因数の和:3289

約数の個数: 16

約数和(自身を含む): 22955400

約数和(自身を除く): 10235230

約数列:

[1, 2, 5, 10, 449, 898, 2245, 2833, 4490, 5666, 14165, 28330, 1272017, 2544034, 6360085, 12720170]

約数ペア:

[(1, 12720170), (2, 6360085), (5, 2544034), (10, 1272017), (449, 28330), (898, 14165), (2245, 5666), (2833, 4490)]