638861906

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{141529}}^1$

素因数の和:141629

約数の個数: 16

約数和(自身を含む): 1000334040

約数和(自身を除く): 361472134

約数列:

[1, 2, 37, 61, 74, 122, 2257, 4514, 141529, 283058, 5236573, 8633269, 10473146, 17266538, 319430953, 638861906]

約数ペア:

[(1, 638861906), (2, 319430953), (37, 17266538), (61, 10473146), (74, 8633269), (122, 5236573), (2257, 283058), (4514, 141529)]