81254405

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{1709}}^1$

素因数の和:2008

約数の個数: 16

約数和(自身を含む): 100589040

約数和(自身を除く): 19334635

約数列:

[1, 5, 37, 185, 257, 1285, 1709, 8545, 9509, 47545, 63233, 316165, 439213, 2196065, 16250881, 81254405]

約数ペア:

[(1, 81254405), (5, 16250881), (37, 2196065), (185, 439213), (257, 316165), (1285, 63233), (1709, 47545), (8545, 9509)]