81099978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 176394240

約数和(自身を除く): 95294262

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 79, 86, 129, 138, 158, 173, 237, 258, 346, 474, 519, 989, 1038, 1817, 1978, 2967, 3397, 3634, 3979, 5451, 5934, 6794, 7439, 7958, 10191, 10902, 11937, 13667, 14878, 20382, 22317, 23874, 27334, 41001, 44634, 78131, 82002, 156262, 171097, 234393, 314341, 342194, 468786, 513291, 587681, 628682, 943023, 1026582, 1175362, 1763043, 1886046, 3526086, 13516663, 27033326, 40549989, 81099978]

約数ペア:

[(1, 81099978), (2, 40549989), (3, 27033326), (6, 13516663), (23, 3526086), (43, 1886046), (46, 1763043), (69, 1175362), (79, 1026582), (86, 943023), (129, 628682), (138, 587681), (158, 513291), (173, 468786), (237, 342194), (258, 314341), (346, 234393), (474, 171097), (519, 156262), (989, 82002), (1038, 78131), (1817, 44634), (1978, 41001), (2967, 27334), (3397, 23874), (3634, 22317), (3979, 20382), (5451, 14878), (5934, 13667), (6794, 11937), (7439, 10902), (7958, 10191)]