72742220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{36011}}^1$

素因数の和:36121

約数の個数: 24

約数和(自身を含む): 154275408

約数和(自身を除く): 81533188

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 36011, 72022, 144044, 180055, 360110, 720220, 3637111, 7274222, 14548444, 18185555, 36371110, 72742220]

約数ペア:

[(1, 72742220), (2, 36371110), (4, 18185555), (5, 14548444), (10, 7274222), (20, 3637111), (101, 720220), (202, 360110), (404, 180055), (505, 144044), (1010, 72022), (2020, 36011)]