38865520

素因数分解:

$2^4\times 5^1\times {\mathrm{485819}}^1$

素因数の和:485832

約数の個数: 20

約数和(自身を含む): 90362520

約数和(自身を除く): 51497000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 485819, 971638, 1943276, 2429095, 3886552, 4858190, 7773104, 9716380, 19432760, 38865520]

約数ペア:

[(1, 38865520), (2, 19432760), (4, 9716380), (5, 7773104), (8, 4858190), (10, 3886552), (16, 2429095), (20, 1943276), (40, 971638), (80, 485819)]