20185520

素因数分解:

$2^4\times 5^1\times {\mathrm{252319}}^1$

素因数の和:252332

約数の個数: 20

約数和(自身を含む): 46931520

約数和(自身を除く): 26746000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252319, 504638, 1009276, 1261595, 2018552, 2523190, 4037104, 5046380, 10092760, 20185520]

約数ペア:

[(1, 20185520), (2, 10092760), (4, 5046380), (5, 4037104), (8, 2523190), (10, 2018552), (16, 1261595), (20, 1009276), (40, 504638), (80, 252319)]