66741520

素因数分解:

$2^4\times 5^1\times {\mathrm{834269}}^1$

素因数の和:834282

約数の個数: 20

約数和(自身を含む): 155174220

約数和(自身を除く): 88432700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 834269, 1668538, 3337076, 4171345, 6674152, 8342690, 13348304, 16685380, 33370760, 66741520]

約数ペア:

[(1, 66741520), (2, 33370760), (4, 16685380), (5, 13348304), (8, 8342690), (10, 6674152), (16, 4171345), (20, 3337076), (40, 1668538), (80, 834269)]