18808220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9311}}^1$

素因数の和:9421

約数の個数: 24

約数和(自身を含む): 39892608

約数和(自身を除く): 21084388

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9311, 18622, 37244, 46555, 93110, 186220, 940411, 1880822, 3761644, 4702055, 9404110, 18808220]

約数ペア:

[(1, 18808220), (2, 9404110), (4, 4702055), (5, 3761644), (10, 1880822), (20, 940411), (101, 186220), (202, 93110), (404, 46555), (505, 37244), (1010, 18622), (2020, 9311)]