20199251920

素因数分解:

$2^4\times 5^1\times {\mathrm{252490649}}^1$

素因数の和:252490662

約数の個数: 20

約数和(自身を含む): 46963260900

約数和(自身を除く): 26764008980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252490649, 504981298, 1009962596, 1262453245, 2019925192, 2524906490, 4039850384, 5049812980, 10099625960, 20199251920]

約数ペア:

[(1, 20199251920), (2, 10099625960), (4, 5049812980), (5, 4039850384), (8, 2524906490), (10, 2019925192), (16, 1262453245), (20, 1009962596), (40, 504981298), (80, 252490649)]