20152792

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21981608

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 109, 121, 191, 218, 242, 382, 436, 484, 764, 872, 968, 1199, 1528, 2101, 2398, 4202, 4796, 8404, 9592, 13189, 16808, 20819, 23111, 26378, 41638, 46222, 52756, 83276, 92444, 105512, 166552, 184888, 229009, 458018, 916036, 1832072, 2519099, 5038198, 10076396, 20152792]

約数ペア:

[(1, 20152792), (2, 10076396), (4, 5038198), (8, 2519099), (11, 1832072), (22, 916036), (44, 458018), (88, 229009), (109, 184888), (121, 166552), (191, 105512), (218, 92444), (242, 83276), (382, 52756), (436, 46222), (484, 41638), (764, 26378), (872, 23111), (968, 20819), (1199, 16808), (1528, 13189), (2101, 9592), (2398, 8404), (4202, 4796)]