81209666

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{2531}}^1$

素因数の和:2857

約数の個数: 16

約数和(自身を含む): 124331328

約数和(自身を除く): 43121662

約数列:

[1, 2, 61, 122, 263, 526, 2531, 5062, 16043, 32086, 154391, 308782, 665653, 1331306, 40604833, 81209666]

約数ペア:

[(1, 81209666), (2, 40604833), (61, 1331306), (122, 665653), (263, 308782), (526, 154391), (2531, 32086), (5062, 16043)]