1328420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 2817024

約数和(自身を除く): 1488604

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 523, 635, 1046, 1270, 2092, 2540, 2615, 5230, 10460, 66421, 132842, 265684, 332105, 664210, 1328420]

約数ペア:

[(1, 1328420), (2, 664210), (4, 332105), (5, 265684), (10, 132842), (20, 66421), (127, 10460), (254, 5230), (508, 2615), (523, 2540), (635, 2092), (1046, 1270)]