81271090

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{62039}}^1$

素因数の和:62177

約数の個数: 16

約数和(自身を含む): 147407040

約数和(自身を除く): 66135950

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 62039, 124078, 310195, 620390, 8127109, 16254218, 40635545, 81271090]

約数ペア:

[(1, 81271090), (2, 40635545), (5, 16254218), (10, 8127109), (131, 620390), (262, 310195), (655, 124078), (1310, 62039)]