123856978

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{1993}}^1$

素因数の和:2218

約数の個数: 32

約数和(自身を含む): 222817536

約数和(自身を除く): 98960558

約数列:

[1, 2, 7, 14, 23, 46, 161, 193, 322, 386, 1351, 1993, 2702, 3986, 4439, 8878, 13951, 27902, 31073, 45839, 62146, 91678, 320873, 384649, 641746, 769298, 2692543, 5385086, 8846927, 17693854, 61928489, 123856978]

約数ペア:

[(1, 123856978), (2, 61928489), (7, 17693854), (14, 8846927), (23, 5385086), (46, 2692543), (161, 769298), (193, 641746), (322, 384649), (386, 320873), (1351, 91678), (1993, 62146), (2702, 45839), (3986, 31073), (4439, 27902), (8878, 13951)]