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http://functions.wolfram.com/13.05.29.0003.01
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DivisorSigma[0, n] < 2 Sqrt[n]
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Cell[BoxData[RowBox[List[RowBox[List["DivisorSigma", "[", RowBox[List["0", ",", "n"]], "]"]], "<", RowBox[List["2", " ", SqrtBox["n"]]]]]]]
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<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <msub> <semantics> <mi> σ </mi> <annotation encoding='Mathematica'> TagBox["\[Sigma]", DivisorSigma] </annotation> </semantics> <mn> 0 </mn> </msub> <mo> ( </mo> <mi> n </mi> <mo> ) </mo> </mrow> <mo> < </mo> <mrow> <mn> 2 </mn> <mo> ⁢ </mo> <msqrt> <mi> n </mi> </msqrt> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <lt /> <apply> <ci> DivisorSigma </ci> <cn type='integer'> 0 </cn> <ci> n </ci> </apply> <apply> <times /> <cn type='integer'> 2 </cn> <apply> <power /> <ci> n </ci> <cn type='rational'> 1 <sep /> 2 </cn> </apply> </apply> </apply> </annotation-xml> </semantics> </math>
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| Cell[BoxData[RowBox[List[RowBox[List["DivisorSigma", "[", RowBox[List["0", ",", "n"]], "]"]], "<", RowBox[List["2", " ", SqrtBox["n"]]]]]]] |
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Date Added to functions.wolfram.com (modification date)
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