128283340

素因数分解:

$2^2\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{3727}}^1$

素因数の和:5457

約数の個数: 24

約数和(自身を含む): 269623872

約数和(自身を除く): 141340532

約数列:

[1, 2, 4, 5, 10, 20, 1721, 3442, 3727, 6884, 7454, 8605, 14908, 17210, 18635, 34420, 37270, 74540, 6414167, 12828334, 25656668, 32070835, 64141670, 128283340]

約数ペア:

[(1, 128283340), (2, 64141670), (4, 32070835), (5, 25656668), (10, 12828334), (20, 6414167), (1721, 74540), (3442, 37270), (3727, 34420), (6884, 18635), (7454, 17210), (8605, 14908)]