20506960

素因数分解:

$2^4\times 5^1\times {\mathrm{256337}}^1$

素因数の和:256350

約数の個数: 20

約数和(自身を含む): 47678868

約数和(自身を除く): 27171908

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256337, 512674, 1025348, 1281685, 2050696, 2563370, 4101392, 5126740, 10253480, 20506960]

約数ペア:

[(1, 20506960), (2, 10253480), (4, 5126740), (5, 4101392), (8, 2563370), (10, 2050696), (16, 1281685), (20, 1025348), (40, 512674), (80, 256337)]