1680644

素因数分解:

$2^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{311}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 3389568

約数和(自身を除く): 1708924

約数列:

[1, 2, 4, 7, 14, 28, 193, 311, 386, 622, 772, 1244, 1351, 2177, 2702, 4354, 5404, 8708, 60023, 120046, 240092, 420161, 840322, 1680644]

約数ペア:

[(1, 1680644), (2, 840322), (4, 420161), (7, 240092), (14, 120046), (28, 60023), (193, 8708), (311, 5404), (386, 4354), (622, 2702), (772, 2177), (1244, 1351)]