11978960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{21391}}^1$

素因数の和:21411

約数の個数: 40

約数和(自身を含む): 31831296

約数和(自身を除く): 19852336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 21391, 42782, 85564, 106955, 149737, 171128, 213910, 299474, 342256, 427820, 598948, 748685, 855640, 1197896, 1497370, 1711280, 2395792, 2994740, 5989480, 11978960]

約数ペア:

[(1, 11978960), (2, 5989480), (4, 2994740), (5, 2395792), (7, 1711280), (8, 1497370), (10, 1197896), (14, 855640), (16, 748685), (20, 598948), (28, 427820), (35, 342256), (40, 299474), (56, 213910), (70, 171128), (80, 149737), (112, 106955), (140, 85564), (280, 42782), (560, 21391)]