128538878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{11743}}^1$

素因数の和:12179

約数の個数: 16

約数和(自身を含む): 208150656

約数和(自身を除く): 79611778

約数列:

[1, 2, 13, 26, 421, 842, 5473, 10946, 11743, 23486, 152659, 305318, 4943803, 9887606, 64269439, 128538878]

約数ペア:

[(1, 128538878), (2, 64269439), (13, 9887606), (26, 4943803), (421, 305318), (842, 152659), (5473, 23486), (10946, 11743)]