12879620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49537}}^1$

素因数の和:49559

約数の個数: 24

約数和(自身を含む): 29128344

約数和(自身を除く): 16248724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49537, 99074, 198148, 247685, 495370, 643981, 990740, 1287962, 2575924, 3219905, 6439810, 12879620]

約数ペア:

[(1, 12879620), (2, 6439810), (4, 3219905), (5, 2575924), (10, 1287962), (13, 990740), (20, 643981), (26, 495370), (52, 247685), (65, 198148), (130, 99074), (260, 49537)]