128978836

素因数分解:

$2^2\times 7^1\times {\mathrm{463}}^1\times {\mathrm{9949}}^1$

素因数の和:10423

約数の個数: 24

約数和(自身を含む): 258540800

約数和(自身を除く): 129561964

約数列:

[1, 2, 4, 7, 14, 28, 463, 926, 1852, 3241, 6482, 9949, 12964, 19898, 39796, 69643, 139286, 278572, 4606387, 9212774, 18425548, 32244709, 64489418, 128978836]

約数ペア:

[(1, 128978836), (2, 64489418), (4, 32244709), (7, 18425548), (14, 9212774), (28, 4606387), (463, 278572), (926, 139286), (1852, 69643), (3241, 39796), (6482, 19898), (9949, 12964)]