257858512

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{393077}}^1$

素因数の和:393126

約数の個数: 20

約数和(自身を含む): 511787556

約数和(自身を除く): 253929044

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 393077, 786154, 1572308, 3144616, 6289232, 16116157, 32232314, 64464628, 128929256, 257858512]

約数ペア:

[(1, 257858512), (2, 128929256), (4, 64464628), (8, 32232314), (16, 16116157), (41, 6289232), (82, 3144616), (164, 1572308), (328, 786154), (656, 393077)]