20604804

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 52872960

約数和(自身を除く): 32268156

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 139, 278, 417, 556, 834, 1123, 1529, 1668, 2246, 3058, 3369, 4492, 4587, 6116, 6738, 9174, 12353, 13476, 18348, 24706, 37059, 49412, 74118, 148236, 156097, 312194, 468291, 624388, 936582, 1717067, 1873164, 3434134, 5151201, 6868268, 10302402, 20604804]

約数ペア:

[(1, 20604804), (2, 10302402), (3, 6868268), (4, 5151201), (6, 3434134), (11, 1873164), (12, 1717067), (22, 936582), (33, 624388), (44, 468291), (66, 312194), (132, 156097), (139, 148236), (278, 74118), (417, 49412), (556, 37059), (834, 24706), (1123, 18348), (1529, 13476), (1668, 12353), (2246, 9174), (3058, 6738), (3369, 6116), (4492, 4587)]