20286590

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5059}}^1$

素因数の和:5467

約数の個数: 16

約数和(自身を含む): 36614160

約数和(自身を除く): 16327570

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5059, 10118, 25295, 50590, 2028659, 4057318, 10143295, 20286590]

約数ペア:

[(1, 20286590), (2, 10143295), (5, 4057318), (10, 2028659), (401, 50590), (802, 25295), (2005, 10118), (4010, 5059)]