20504004

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 49375872

約数和(自身を除く): 28871868

約数列:

[1, 2, 3, 4, 6, 12, 53, 103, 106, 159, 206, 212, 309, 313, 318, 412, 618, 626, 636, 939, 1236, 1252, 1878, 3756, 5459, 10918, 16377, 16589, 21836, 32239, 32754, 33178, 49767, 64478, 65508, 66356, 96717, 99534, 128956, 193434, 199068, 386868, 1708667, 3417334, 5126001, 6834668, 10252002, 20504004]

約数ペア:

[(1, 20504004), (2, 10252002), (3, 6834668), (4, 5126001), (6, 3417334), (12, 1708667), (53, 386868), (103, 199068), (106, 193434), (159, 128956), (206, 99534), (212, 96717), (309, 66356), (313, 65508), (318, 64478), (412, 49767), (618, 33178), (626, 32754), (636, 32239), (939, 21836), (1236, 16589), (1252, 16377), (1878, 10918), (3756, 5459)]