20500850

素因数分解:

$2^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1559}}^1$

素因数の和:1834

約数の個数: 24

約数和(自身を含む): 38301120

約数和(自身を除く): 17800270

約数列:

[1, 2, 5, 10, 25, 50, 263, 526, 1315, 1559, 2630, 3118, 6575, 7795, 13150, 15590, 38975, 77950, 410017, 820034, 2050085, 4100170, 10250425, 20500850]

約数ペア:

[(1, 20500850), (2, 10250425), (5, 4100170), (10, 2050085), (25, 820034), (50, 410017), (263, 77950), (526, 38975), (1315, 15590), (1559, 13150), (2630, 7795), (3118, 6575)]