131181640

素因数分解:

$2^3\times 5^1\times {\mathrm{3279541}}^1$

素因数の和:3279552

約数の個数: 16

約数和(自身を含む): 295158780

約数和(自身を除く): 163977140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3279541, 6559082, 13118164, 16397705, 26236328, 32795410, 65590820, 131181640]

約数ペア:

[(1, 131181640), (2, 65590820), (4, 32795410), (5, 26236328), (8, 16397705), (10, 13118164), (20, 6559082), (40, 3279541)]