204590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:547

約数の個数: 16

約数和(自身を含む): 378000

約数和(自身を除く): 173410

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 499, 998, 2495, 4990, 20459, 40918, 102295, 204590]

約数ペア:

[(1, 204590), (2, 102295), (5, 40918), (10, 20459), (41, 4990), (82, 2495), (205, 998), (410, 499)]