278317580

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{72103}}^1$

素因数の和:72305

約数の個数: 24

約数和(自身を含む): 587503392

約数和(自身を除く): 309185812

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 72103, 144206, 288412, 360515, 721030, 1442060, 13915879, 27831758, 55663516, 69579395, 139158790, 278317580]

約数ペア:

[(1, 278317580), (2, 139158790), (4, 69579395), (5, 55663516), (10, 27831758), (20, 13915879), (193, 1442060), (386, 721030), (772, 360515), (965, 288412), (1930, 144206), (3860, 72103)]