898711280

素因数分解:

$2^4\times 5^1\times {\mathrm{11233891}}^1$

素因数の和:11233904

約数の個数: 20

約数和(自身を含む): 2089503912

約数和(自身を除く): 1190792632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11233891, 22467782, 44935564, 56169455, 89871128, 112338910, 179742256, 224677820, 449355640, 898711280]

約数ペア:

[(1, 898711280), (2, 449355640), (4, 224677820), (5, 179742256), (8, 112338910), (10, 89871128), (16, 56169455), (20, 44935564), (40, 22467782), (80, 11233891)]