81120052004

素因数分解:

$2^2\times {\mathrm{2081}}^1\times {\mathrm{9745321}}^1$

素因数の和:9747406

約数の個数: 12

約数和(自身を含む): 142028322828

約数和(自身を除く): 60908270824

約数列:

[1, 2, 4, 2081, 4162, 8324, 9745321, 19490642, 38981284, 20280013001, 40560026002, 81120052004]

約数ペア:

[(1, 81120052004), (2, 40560026002), (4, 20280013001), (2081, 38981284), (4162, 19490642), (8324, 9745321)]