15511280

素因数分解:

$2^4\times 5^1\times {\mathrm{193891}}^1$

素因数の和:193904

約数の個数: 20

約数和(自身を含む): 36063912

約数和(自身を除く): 20552632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193891, 387782, 775564, 969455, 1551128, 1938910, 3102256, 3877820, 7755640, 15511280]

約数ペア:

[(1, 15511280), (2, 7755640), (4, 3877820), (5, 3102256), (8, 1938910), (10, 1551128), (16, 969455), (20, 775564), (40, 387782), (80, 193891)]