648674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:485

約数の個数: 16

約数和(自身を含む): 1067640

約数和(自身を除く): 418966

約数列:

[1, 2, 13, 26, 61, 122, 409, 793, 818, 1586, 5317, 10634, 24949, 49898, 324337, 648674]

約数ペア:

[(1, 648674), (2, 324337), (13, 49898), (26, 24949), (61, 10634), (122, 5317), (409, 1586), (793, 818)]