81405356162

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{240844249}}^1$

素因数の和:240844277

約数の個数: 12

約数和(自身を含む): 132223493250

約数和(自身を除く): 50818137088

約数列:

[1, 2, 13, 26, 169, 338, 240844249, 481688498, 3130975237, 6261950474, 40702678081, 81405356162]

約数ペア:

[(1, 81405356162), (2, 40702678081), (13, 6261950474), (26, 3130975237), (169, 481688498), (338, 240844249)]