31239945

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 61459200

約数和(自身を除く): 30219255

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 109, 135, 165, 193, 297, 327, 495, 545, 579, 965, 981, 1199, 1485, 1635, 1737, 2123, 2895, 2943, 3597, 4905, 5211, 5995, 6369, 8685, 10615, 10791, 14715, 17985, 19107, 21037, 26055, 31845, 32373, 53955, 57321, 63111, 95535, 105185, 161865, 189333, 231407, 286605, 315555, 567999, 694221, 946665, 1157035, 2082663, 2839995, 3471105, 6247989, 10413315, 31239945]

約数ペア:

[(1, 31239945), (3, 10413315), (5, 6247989), (9, 3471105), (11, 2839995), (15, 2082663), (27, 1157035), (33, 946665), (45, 694221), (55, 567999), (99, 315555), (109, 286605), (135, 231407), (165, 189333), (193, 161865), (297, 105185), (327, 95535), (495, 63111), (545, 57321), (579, 53955), (965, 32373), (981, 31845), (1199, 26055), (1485, 21037), (1635, 19107), (1737, 17985), (2123, 14715), (2895, 10791), (2943, 10615), (3597, 8685), (4905, 6369), (5211, 5995)]