81748180

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{5531}}^1$

素因数の和:6279

約数の個数: 24

約数和(自身を含む): 171934560

約数和(自身を除く): 90186380

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 5531, 7390, 11062, 14780, 22124, 27655, 55310, 110620, 4087409, 8174818, 16349636, 20437045, 40874090, 81748180]

約数ペア:

[(1, 81748180), (2, 40874090), (4, 20437045), (5, 16349636), (10, 8174818), (20, 4087409), (739, 110620), (1478, 55310), (2956, 27655), (3695, 22124), (5531, 14780), (7390, 11062)]