284706.0000000

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2909}}^1$

素因数の和:3057

約数の個数: 24

約数和(自身を含む): 17110800

約数和(自身を除く): 9023780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 2909, 5818, 11636, 14545, 29090, 58180, 404351, 808702, 1617404, 2021755, 4043510, 8087020]

約数ペア:

[(1, 8087020), (2, 4043510), (4, 2021755), (5, 1617404), (10, 808702), (20, 404351), (139, 58180), (278, 29090), (556, 14545), (695, 11636), (1390, 5818), (2780, 2909)]