19780031572

素因数分解:

$2^2\times 7^1\times {\mathrm{706429699}}^1$

素因数の和:706429710

約数の個数: 12

約数和(自身を含む): 39560063200

約数和(自身を除く): 19780031628

約数列:

[1, 2, 4, 7, 14, 28, 706429699, 1412859398, 2825718796, 4945007893, 9890015786, 19780031572]

約数ペア:

[(1, 19780031572), (2, 9890015786), (4, 4945007893), (7, 2825718796), (14, 1412859398), (28, 706429699)]