15255640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3499}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 34650000

約数和(自身を除く): 19394360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3499, 4360, 6998, 13996, 17495, 27992, 34990, 69980, 139960, 381391, 762782, 1525564, 1906955, 3051128, 3813910, 7627820, 15255640]

約数ペア:

[(1, 15255640), (2, 7627820), (4, 3813910), (5, 3051128), (8, 1906955), (10, 1525564), (20, 762782), (40, 381391), (109, 139960), (218, 69980), (436, 34990), (545, 27992), (872, 17495), (1090, 13996), (2180, 6998), (3499, 4360)]