20339735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 7964905

約数列:

[1, 5, 13, 17, 65, 79, 85, 221, 233, 395, 1027, 1105, 1165, 1343, 3029, 3961, 5135, 6715, 15145, 17459, 18407, 19805, 51493, 87295, 92035, 239291, 257465, 312919, 1196455, 1564595, 4067947, 20339735]

約数ペア:

[(1, 20339735), (5, 4067947), (13, 1564595), (17, 1196455), (65, 312919), (79, 257465), (85, 239291), (221, 92035), (233, 87295), (395, 51493), (1027, 19805), (1105, 18407), (1165, 17459), (1343, 15145), (3029, 6715), (3961, 5135)]