638942864

素因数分解:

$2^4\times 7^1\times {\mathrm{5704847}}^1$

素因数の和:5704862

約数の個数: 20

約数和(自身を含む): 1414802304

約数和(自身を除く): 775859440

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5704847, 11409694, 22819388, 39933929, 45638776, 79867858, 91277552, 159735716, 319471432, 638942864]

約数ペア:

[(1, 638942864), (2, 319471432), (4, 159735716), (7, 91277552), (8, 79867858), (14, 45638776), (16, 39933929), (28, 22819388), (56, 11409694), (112, 5704847)]