20805577804

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{311}}^1\times {\mathrm{2063}}^1$

素因数の和:2467

約数の個数: 72

約数和(自身を含む): 40768326144

約数和(自身を除く): 19962748340

約数列:

[1, 2, 4, 11, 22, 44, 67, 121, 134, 242, 268, 311, 484, 622, 737, 1244, 1474, 2063, 2948, 3421, 4126, 6842, 8107, 8252, 13684, 16214, 20837, 22693, 32428, 37631, 41674, 45386, 75262, 83348, 90772, 138221, 150524, 229207, 249623, 276442, 458414, 499246, 552884, 641593, 916828, 998492, 1283186, 1520431, 2521277, 2566372, 3040862, 5042554, 6081724, 7057523, 10085108, 14115046, 16724741, 28230092, 33449482, 42986731, 66898964, 77632753, 85973462, 155265506, 171946924, 310531012, 472854041, 945708082, 1891416164, 5201394451, 10402788902, 20805577804]

約数ペア:

[(1, 20805577804), (2, 10402788902), (4, 5201394451), (11, 1891416164), (22, 945708082), (44, 472854041), (67, 310531012), (121, 171946924), (134, 155265506), (242, 85973462), (268, 77632753), (311, 66898964), (484, 42986731), (622, 33449482), (737, 28230092), (1244, 16724741), (1474, 14115046), (2063, 10085108), (2948, 7057523), (3421, 6081724), (4126, 5042554), (6842, 3040862), (8107, 2566372), (8252, 2521277), (13684, 1520431), (16214, 1283186), (20837, 998492), (22693, 916828), (32428, 641593), (37631, 552884), (41674, 499246), (45386, 458414), (75262, 276442), (83348, 249623), (90772, 229207), (138221, 150524)]