81285838

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{5081}}^1$

素因数の和:5523

約数の個数: 16

約数和(自身を含む): 128676240

約数和(自身を除く): 47390402

約数列:

[1, 2, 19, 38, 421, 842, 5081, 7999, 10162, 15998, 96539, 193078, 2139101, 4278202, 40642919, 81285838]

約数ペア:

[(1, 81285838), (2, 40642919), (19, 4278202), (38, 2139101), (421, 193078), (842, 96539), (5081, 15998), (7999, 10162)]