78999788

素因数分解:

$2^2\times 7^1\times {\mathrm{2821421}}^1$

素因数の和:2821432

約数の個数: 12

約数和(自身を含む): 157999632

約数和(自身を除く): 78999844

約数列:

[1, 2, 4, 7, 14, 28, 2821421, 5642842, 11285684, 19749947, 39499894, 78999788]

約数ペア:

[(1, 78999788), (2, 39499894), (4, 19749947), (7, 11285684), (14, 5642842), (28, 2821421)]