20802590

素因数分解:

$2^1\times 5^1\times {\mathrm{463}}^1\times {\mathrm{4493}}^1$

素因数の和:4963

約数の個数: 16

約数和(自身を含む): 37533888

約数和(自身を除く): 16731298

約数列:

[1, 2, 5, 10, 463, 926, 2315, 4493, 4630, 8986, 22465, 44930, 2080259, 4160518, 10401295, 20802590]

約数ペア:

[(1, 20802590), (2, 10401295), (5, 4160518), (10, 2080259), (463, 44930), (926, 22465), (2315, 8986), (4493, 4630)]