28657340

素因数分解:

$2^2\times 5^1\times {\mathrm{587}}^1\times {\mathrm{2441}}^1$

素因数の和:3037

約数の個数: 24

約数和(自身を含む): 60307632

約数和(自身を除く): 31650292

約数列:

[1, 2, 4, 5, 10, 20, 587, 1174, 2348, 2441, 2935, 4882, 5870, 9764, 11740, 12205, 24410, 48820, 1432867, 2865734, 5731468, 7164335, 14328670, 28657340]

約数ペア:

[(1, 28657340), (2, 14328670), (4, 7164335), (5, 5731468), (10, 2865734), (20, 1432867), (587, 48820), (1174, 24410), (2348, 12205), (2441, 11740), (2935, 9764), (4882, 5870)]