179671420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{523}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 384259680

約数和(自身を除く): 204588260

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 193, 356, 386, 445, 523, 772, 890, 965, 1046, 1780, 1930, 2092, 2615, 3860, 5230, 10460, 17177, 34354, 46547, 68708, 85885, 93094, 100939, 171770, 186188, 201878, 232735, 343540, 403756, 465470, 504695, 930940, 1009390, 2018780, 8983571, 17967142, 35934284, 44917855, 89835710, 179671420]

約数ペア:

[(1, 179671420), (2, 89835710), (4, 44917855), (5, 35934284), (10, 17967142), (20, 8983571), (89, 2018780), (178, 1009390), (193, 930940), (356, 504695), (386, 465470), (445, 403756), (523, 343540), (772, 232735), (890, 201878), (965, 186188), (1046, 171770), (1780, 100939), (1930, 93094), (2092, 85885), (2615, 68708), (3860, 46547), (5230, 34354), (10460, 17177)]