28268720

素因数分解:

$2^4\times 5^1\times {\mathrm{353359}}^1$

素因数の和:353372

約数の個数: 20

約数和(自身を含む): 65724960

約数和(自身を除く): 37456240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353359, 706718, 1413436, 1766795, 2826872, 3533590, 5653744, 7067180, 14134360, 28268720]

約数ペア:

[(1, 28268720), (2, 14134360), (4, 7067180), (5, 5653744), (8, 3533590), (10, 2826872), (16, 1766795), (20, 1413436), (40, 706718), (80, 353359)]