389373964

素因数分解:

$2^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{31391}}^1$

素因数の和:31845

約数の個数: 24

約数和(自身を含む): 780530688

約数和(自身を除く): 391156724

約数列:

[1, 2, 4, 7, 14, 28, 443, 886, 1772, 3101, 6202, 12404, 31391, 62782, 125564, 219737, 439474, 878948, 13906213, 27812426, 55624852, 97343491, 194686982, 389373964]

約数ペア:

[(1, 389373964), (2, 194686982), (4, 97343491), (7, 55624852), (14, 27812426), (28, 13906213), (443, 878948), (886, 439474), (1772, 219737), (3101, 125564), (6202, 62782), (12404, 31391)]