20802802612

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{107}}^1\times {\mathrm{134639}}^1$

素因数の和:134788

約数の個数: 36

約数和(自身を含む): 38781167040

約数和(自身を除く): 17978364428

約数列:

[1, 2, 4, 19, 38, 76, 107, 214, 361, 428, 722, 1444, 2033, 4066, 8132, 38627, 77254, 134639, 154508, 269278, 538556, 2558141, 5116282, 10232564, 14406373, 28812746, 48604679, 57625492, 97209358, 194418716, 273721087, 547442174, 1094884348, 5200700653, 10401401306, 20802802612]

約数ペア:

[(1, 20802802612), (2, 10401401306), (4, 5200700653), (19, 1094884348), (38, 547442174), (76, 273721087), (107, 194418716), (214, 97209358), (361, 57625492), (428, 48604679), (722, 28812746), (1444, 14406373), (2033, 10232564), (4066, 5116282), (8132, 2558141), (38627, 538556), (77254, 269278), (134639, 154508)]