81000.00000000

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{2999}}^1$

素因数の和:3177

約数の個数: 16

約数和(自身を含む): 67320000

約数和(自身を除く): 23516606

約数列:

[1, 2, 67, 109, 134, 218, 2999, 5998, 7303, 14606, 200933, 326891, 401866, 653782, 21901697, 43803394]

約数ペア:

[(1, 43803394), (2, 21901697), (67, 653782), (109, 401866), (134, 326891), (218, 200933), (2999, 14606), (5998, 7303)]