2905945

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 4206600

約数和(自身を除く): 1300655

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 409, 1015, 1421, 2045, 2863, 7105, 11861, 14315, 20041, 59305, 83027, 100205, 415135, 581189, 2905945]

約数ペア:

[(1, 2905945), (5, 581189), (7, 415135), (29, 100205), (35, 83027), (49, 59305), (145, 20041), (203, 14315), (245, 11861), (409, 7105), (1015, 2863), (1421, 2045)]