1328438420

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{72911}}^1$

素因数の和:73831

約数の個数: 24

約数和(自身を含む): 2792821248

約数和(自身を除く): 1464382828

約数列:

[1, 2, 4, 5, 10, 20, 911, 1822, 3644, 4555, 9110, 18220, 72911, 145822, 291644, 364555, 729110, 1458220, 66421921, 132843842, 265687684, 332109605, 664219210, 1328438420]

約数ペア:

[(1, 1328438420), (2, 664219210), (4, 332109605), (5, 265687684), (10, 132843842), (20, 66421921), (911, 1458220), (1822, 729110), (3644, 364555), (4555, 291644), (9110, 145822), (18220, 72911)]