11405420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43867}}^1$

素因数の和:43889

約数の個数: 24

約数和(自身を含む): 25794384

約数和(自身を除く): 14388964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 43867, 87734, 175468, 219335, 438670, 570271, 877340, 1140542, 2281084, 2851355, 5702710, 11405420]

約数ペア:

[(1, 11405420), (2, 5702710), (4, 2851355), (5, 2281084), (10, 1140542), (13, 877340), (20, 570271), (26, 438670), (52, 219335), (65, 175468), (130, 87734), (260, 43867)]