389645788

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{127669}}^1$

素因数の和:127789

約数の個数: 24

約数和(自身を含む): 786447200

約数和(自身を除く): 396801412

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 127669, 255338, 510676, 893683, 1787366, 3574732, 13915921, 27831842, 55663684, 97411447, 194822894, 389645788]

約数ペア:

[(1, 389645788), (2, 194822894), (4, 97411447), (7, 55663684), (14, 27831842), (28, 13915921), (109, 3574732), (218, 1787366), (436, 893683), (763, 510676), (1526, 255338), (3052, 127669)]