27779815

素因数分解:

$5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1597}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 39349152

約数和(自身を除く): 11569337

約数列:

[1, 5, 7, 35, 49, 71, 245, 355, 497, 1597, 2485, 3479, 7985, 11179, 17395, 55895, 78253, 113387, 391265, 566935, 793709, 3968545, 5555963, 27779815]

約数ペア:

[(1, 27779815), (5, 5555963), (7, 3968545), (35, 793709), (49, 566935), (71, 391265), (245, 113387), (355, 78253), (497, 55895), (1597, 17395), (2485, 11179), (3479, 7985)]