20254040

素因数分解:

$2^3\times 5^1\times {\mathrm{506351}}^1$

素因数の和:506362

約数の個数: 16

約数和(自身を含む): 45571680

約数和(自身を除く): 25317640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 506351, 1012702, 2025404, 2531755, 4050808, 5063510, 10127020, 20254040]

約数ペア:

[(1, 20254040), (2, 10127020), (4, 5063510), (5, 4050808), (8, 2531755), (10, 2025404), (20, 1012702), (40, 506351)]