208778878

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71353}}^1$

素因数の和:71392

約数の個数: 32

約数和(自身を含む): 410999040

約数和(自身を除く): 202220162

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 71353, 142706, 499471, 784883, 998942, 1355707, 1569766, 2711414, 5494181, 9489949, 10988362, 14912777, 18979898, 29825554, 104389439, 208778878]

約数ペア:

[(1, 208778878), (2, 104389439), (7, 29825554), (11, 18979898), (14, 14912777), (19, 10988362), (22, 9489949), (38, 5494181), (77, 2711414), (133, 1569766), (154, 1355707), (209, 998942), (266, 784883), (418, 499471), (1463, 142706), (2926, 71353)]