129842380

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{3331}}^1$

素因数の和:5289

約数の個数: 24

約数和(自身を含む): 272890800

約数和(自身を除く): 143048420

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3331, 3898, 6662, 7796, 9745, 13324, 16655, 19490, 33310, 38980, 66620, 6492119, 12984238, 25968476, 32460595, 64921190, 129842380]

約数ペア:

[(1, 129842380), (2, 64921190), (4, 32460595), (5, 25968476), (10, 12984238), (20, 6492119), (1949, 66620), (3331, 38980), (3898, 33310), (6662, 19490), (7796, 16655), (9745, 13324)]