81171810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{901909}}^1$

素因数の和:901922

約数の個数: 24

約数和(自身を含む): 211046940

約数和(自身を除く): 129875130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 901909, 1803818, 2705727, 4509545, 5411454, 8117181, 9019090, 13528635, 16234362, 27057270, 40585905, 81171810]

約数ペア:

[(1, 81171810), (2, 40585905), (3, 27057270), (5, 16234362), (6, 13528635), (9, 9019090), (10, 8117181), (15, 5411454), (18, 4509545), (30, 2705727), (45, 1803818), (90, 901909)]