81301610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{625397}}^1$

素因数の和:625417

約数の個数: 16

約数和(自身を含む): 157600296

約数和(自身を除く): 76298686

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 625397, 1250794, 3126985, 6253970, 8130161, 16260322, 40650805, 81301610]

約数ペア:

[(1, 81301610), (2, 40650805), (5, 16260322), (10, 8130161), (13, 6253970), (26, 3126985), (65, 1250794), (130, 625397)]