25758580

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2003}}^1$

素因数の和:2655

約数の個数: 24

約数和(自身を含む): 54204192

約数和(自身を除く): 28445612

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2003, 2572, 3215, 4006, 6430, 8012, 10015, 12860, 20030, 40060, 1287929, 2575858, 5151716, 6439645, 12879290, 25758580]

約数ペア:

[(1, 25758580), (2, 12879290), (4, 6439645), (5, 5151716), (10, 2575858), (20, 1287929), (643, 40060), (1286, 20030), (2003, 12860), (2572, 10015), (3215, 8012), (4006, 6430)]