66720388

素因数分解:

$2^2\times 7^1\times {\mathrm{2382871}}^1$

素因数の和:2382882

約数の個数: 12

約数和(自身を含む): 133440832

約数和(自身を除く): 66720444

約数列:

[1, 2, 4, 7, 14, 28, 2382871, 4765742, 9531484, 16680097, 33360194, 66720388]

約数ペア:

[(1, 66720388), (2, 33360194), (4, 16680097), (7, 9531484), (14, 4765742), (28, 2382871)]