18987340

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{4919}}^1$

素因数の和:5121

約数の個数: 24

約数和(自身を含む): 40088160

約数和(自身を除く): 21100820

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 4919, 9838, 19676, 24595, 49190, 98380, 949367, 1898734, 3797468, 4746835, 9493670, 18987340]

約数ペア:

[(1, 18987340), (2, 9493670), (4, 4746835), (5, 3797468), (10, 1898734), (20, 949367), (193, 98380), (386, 49190), (772, 24595), (965, 19676), (1930, 9838), (3860, 4919)]