138080180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{986287}}^1$

素因数の和:986303

約数の個数: 24

約数和(自身を含む): 331392768

約数和(自身を除く): 193312588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 986287, 1972574, 3945148, 4931435, 6904009, 9862870, 13808018, 19725740, 27616036, 34520045, 69040090, 138080180]

約数ペア:

[(1, 138080180), (2, 69040090), (4, 34520045), (5, 27616036), (7, 19725740), (10, 13808018), (14, 9862870), (20, 6904009), (28, 4931435), (35, 3945148), (70, 1972574), (140, 986287)]