208060

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 445536

約数和(自身を除く): 237476

約数列:

[1, 2, 4, 5, 10, 20, 101, 103, 202, 206, 404, 412, 505, 515, 1010, 1030, 2020, 2060, 10403, 20806, 41612, 52015, 104030, 208060]

約数ペア:

[(1, 208060), (2, 104030), (4, 52015), (5, 41612), (10, 20806), (20, 10403), (101, 2060), (103, 2020), (202, 1030), (206, 1010), (404, 515), (412, 505)]