128423860

素因数分解:

$2^2\times 5^1\times {\mathrm{587}}^1\times {\mathrm{10939}}^1$

素因数の和:11535

約数の個数: 24

約数和(自身を含む): 270174240

約数和(自身を除く): 141750380

約数列:

[1, 2, 4, 5, 10, 20, 587, 1174, 2348, 2935, 5870, 10939, 11740, 21878, 43756, 54695, 109390, 218780, 6421193, 12842386, 25684772, 32105965, 64211930, 128423860]

約数ペア:

[(1, 128423860), (2, 64211930), (4, 32105965), (5, 25684772), (10, 12842386), (20, 6421193), (587, 218780), (1174, 109390), (2348, 54695), (2935, 43756), (5870, 21878), (10939, 11740)]