20710960

素因数分解:

$2^4\times 5^1\times {\mathrm{258887}}^1$

素因数の和:258900

約数の個数: 20

約数和(自身を含む): 48153168

約数和(自身を除く): 27442208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 258887, 517774, 1035548, 1294435, 2071096, 2588870, 4142192, 5177740, 10355480, 20710960]

約数ペア:

[(1, 20710960), (2, 10355480), (4, 5177740), (5, 4142192), (8, 2588870), (10, 2071096), (16, 1294435), (20, 1035548), (40, 517774), (80, 258887)]