81042388

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{15991}}^1$

素因数の和:16183

約数の個数: 24

約数和(自身を含む): 162990464

約数和(自身を除く): 81948076

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 5068, 15991, 31982, 63964, 111937, 223874, 447748, 2894371, 5788742, 11577484, 20260597, 40521194, 81042388]

約数ペア:

[(1, 81042388), (2, 40521194), (4, 20260597), (7, 11577484), (14, 5788742), (28, 2894371), (181, 447748), (362, 223874), (724, 111937), (1267, 63964), (2534, 31982), (5068, 15991)]