20390672

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{2903}}^1$

素因数の和:3350

約数の個数: 20

約数和(自身を含む): 39610560

約数和(自身を除く): 19219888

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 2903, 3512, 5806, 7024, 11612, 23224, 46448, 1274417, 2548834, 5097668, 10195336, 20390672]

約数ペア:

[(1, 20390672), (2, 10195336), (4, 5097668), (8, 2548834), (16, 1274417), (439, 46448), (878, 23224), (1756, 11612), (2903, 7024), (3512, 5806)]