81858530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{48437}}^1$

素因数の和:48470

約数の個数: 24

約数和(自身を含む): 159554772

約数和(自身を除く): 77696242

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 48437, 96874, 242185, 484370, 629681, 1259362, 3148405, 6296810, 8185853, 16371706, 40929265, 81858530]

約数ペア:

[(1, 81858530), (2, 40929265), (5, 16371706), (10, 8185853), (13, 6296810), (26, 3148405), (65, 1259362), (130, 629681), (169, 484370), (338, 242185), (845, 96874), (1690, 48437)]