309428

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 635712

約数和(自身を除く): 326284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 257, 301, 514, 602, 1028, 1204, 1799, 3598, 7196, 11051, 22102, 44204, 77357, 154714, 309428]

約数ペア:

[(1, 309428), (2, 154714), (4, 77357), (7, 44204), (14, 22102), (28, 11051), (43, 7196), (86, 3598), (172, 1799), (257, 1204), (301, 1028), (514, 602)]