217423660

素因数分解:

$2^2\times 5^1\times {\mathrm{2087}}^1\times {\mathrm{5209}}^1$

素因数の和:7305

約数の個数: 24

約数和(自身を含む): 456896160

約数和(自身を除く): 239472500

約数列:

[1, 2, 4, 5, 10, 20, 2087, 4174, 5209, 8348, 10418, 10435, 20836, 20870, 26045, 41740, 52090, 104180, 10871183, 21742366, 43484732, 54355915, 108711830, 217423660]

約数ペア:

[(1, 217423660), (2, 108711830), (4, 54355915), (5, 43484732), (10, 21742366), (20, 10871183), (2087, 104180), (4174, 52090), (5209, 41740), (8348, 26045), (10418, 20870), (10435, 20836)]