855207940

素因数分解:

$2^2\times 5^1\times {\mathrm{42760397}}^1$

素因数の和:42760406

約数の個数: 12

約数和(自身を含む): 1795936716

約数和(自身を除く): 940728776

約数列:

[1, 2, 4, 5, 10, 20, 42760397, 85520794, 171041588, 213801985, 427603970, 855207940]

約数ペア:

[(1, 855207940), (2, 427603970), (4, 213801985), (5, 171041588), (10, 85520794), (20, 42760397)]