289269428

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{240257}}^1$

素因数の和:240311

約数の個数: 24

約数和(自身を含む): 591995712

約数和(自身を除く): 302726284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 240257, 480514, 961028, 1681799, 3363598, 6727196, 10331051, 20662102, 41324204, 72317357, 144634714, 289269428]

約数ペア:

[(1, 289269428), (2, 144634714), (4, 72317357), (7, 41324204), (14, 20662102), (28, 10331051), (43, 6727196), (86, 3363598), (172, 1681799), (301, 961028), (602, 480514), (1204, 240257)]