8556140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9949}}^1$

素因数の和:10001

約数の個数: 24

約数和(自身を含む): 18387600

約数和(自身を除く): 9831460

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 9949, 19898, 39796, 49745, 99490, 198980, 427807, 855614, 1711228, 2139035, 4278070, 8556140]

約数ペア:

[(1, 8556140), (2, 4278070), (4, 2139035), (5, 1711228), (10, 855614), (20, 427807), (43, 198980), (86, 99490), (172, 49745), (215, 39796), (430, 19898), (860, 9949)]