8553340

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{661}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 18016992

約数和(自身を除く): 9463652

約数列:

[1, 2, 4, 5, 10, 20, 647, 661, 1294, 1322, 2588, 2644, 3235, 3305, 6470, 6610, 12940, 13220, 427667, 855334, 1710668, 2138335, 4276670, 8553340]

約数ペア:

[(1, 8553340), (2, 4276670), (4, 2138335), (5, 1710668), (10, 855334), (20, 427667), (647, 13220), (661, 12940), (1294, 6610), (1322, 6470), (2588, 3305), (2644, 3235)]