168045520

素因数分解:

$2^4\times 5^1\times {\mathrm{2100569}}^1$

素因数の和:2100582

約数の個数: 20

約数和(自身を含む): 390706020

約数和(自身を除く): 222660500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2100569, 4201138, 8402276, 10502845, 16804552, 21005690, 33609104, 42011380, 84022760, 168045520]

約数ペア:

[(1, 168045520), (2, 84022760), (4, 42011380), (5, 33609104), (8, 21005690), (10, 16804552), (16, 10502845), (20, 8402276), (40, 4201138), (80, 2100569)]