78215888

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{43261}}^1$

素因数の和:43382

約数の個数: 20

約数和(自身を含む): 152887908

約数和(自身を除く): 74672020

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 43261, 86522, 173044, 346088, 692176, 4888493, 9776986, 19553972, 39107944, 78215888]

約数ペア:

[(1, 78215888), (2, 39107944), (4, 19553972), (8, 9776986), (16, 4888493), (113, 692176), (226, 346088), (452, 173044), (904, 86522), (1808, 43261)]