28106740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12893}}^1$

素因数の和:13011

約数の個数: 24

約数和(自身を含む): 59570280

約数和(自身を除く): 31463540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 12893, 25786, 51572, 64465, 128930, 257860, 1405337, 2810674, 5621348, 7026685, 14053370, 28106740]

約数ペア:

[(1, 28106740), (2, 14053370), (4, 7026685), (5, 5621348), (10, 2810674), (20, 1405337), (109, 257860), (218, 128930), (436, 64465), (545, 51572), (1090, 25786), (2180, 12893)]