128892978

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2081}}^1$

素因数の和:2160

約数の個数: 64

約数和(自身を含む): 303805440

約数和(自身を除く): 174912462

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 37, 54, 62, 74, 93, 111, 186, 222, 279, 333, 558, 666, 837, 999, 1147, 1674, 1998, 2081, 2294, 3441, 4162, 6243, 6882, 10323, 12486, 18729, 20646, 30969, 37458, 56187, 61938, 64511, 76997, 112374, 129022, 153994, 193533, 230991, 387066, 461982, 580599, 692973, 1161198, 1385946, 1741797, 2078919, 2386907, 3483594, 4157838, 4773814, 7160721, 14321442, 21482163, 42964326, 64446489, 128892978]

約数ペア:

[(1, 128892978), (2, 64446489), (3, 42964326), (6, 21482163), (9, 14321442), (18, 7160721), (27, 4773814), (31, 4157838), (37, 3483594), (54, 2386907), (62, 2078919), (74, 1741797), (93, 1385946), (111, 1161198), (186, 692973), (222, 580599), (279, 461982), (333, 387066), (558, 230991), (666, 193533), (837, 153994), (999, 129022), (1147, 112374), (1674, 76997), (1998, 64511), (2081, 61938), (2294, 56187), (3441, 37458), (4162, 30969), (6243, 20646), (6882, 18729), (10323, 12486)]