28116530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 55655424

約数和(自身を除く): 27538894

約数列:

[1, 2, 5, 10, 13, 26, 65, 127, 130, 131, 169, 254, 262, 338, 635, 655, 845, 1270, 1310, 1651, 1690, 1703, 3302, 3406, 8255, 8515, 16510, 16637, 17030, 21463, 22139, 33274, 42926, 44278, 83185, 107315, 110695, 166370, 214630, 216281, 221390, 432562, 1081405, 2162810, 2811653, 5623306, 14058265, 28116530]

約数ペア:

[(1, 28116530), (2, 14058265), (5, 5623306), (10, 2811653), (13, 2162810), (26, 1081405), (65, 432562), (127, 221390), (130, 216281), (131, 214630), (169, 166370), (254, 110695), (262, 107315), (338, 83185), (635, 44278), (655, 42926), (845, 33274), (1270, 22139), (1310, 21463), (1651, 17030), (1690, 16637), (1703, 16510), (3302, 8515), (3406, 8255)]