1640371894

素因数分解:

$2^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{335729}}^1$

素因数の和:336087

約数の個数: 16

約数和(自身を含む): 2820132000

約数和(自身を除く): 1179760106

約数列:

[1, 2, 7, 14, 349, 698, 2443, 4886, 335729, 671458, 2350103, 4700206, 117169421, 234338842, 820185947, 1640371894]

約数ペア:

[(1, 1640371894), (2, 820185947), (7, 234338842), (14, 117169421), (349, 4700206), (698, 2350103), (2443, 671458), (4886, 335729)]