201780639

素因数分解:

$3^6\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 56

約数和(自身を含む): 319138512

約数和(自身を除く): 117357873

約数列:

[1, 3, 9, 27, 41, 43, 81, 123, 129, 157, 243, 369, 387, 471, 729, 1107, 1161, 1413, 1763, 3321, 3483, 4239, 5289, 6437, 6751, 9963, 10449, 12717, 15867, 19311, 20253, 29889, 31347, 38151, 47601, 57933, 60759, 114453, 142803, 173799, 182277, 276791, 428409, 521397, 546831, 830373, 1285227, 1564191, 1640493, 2491119, 4692573, 4921479, 7473357, 22420071, 67260213, 201780639]

約数ペア:

[(1, 201780639), (3, 67260213), (9, 22420071), (27, 7473357), (41, 4921479), (43, 4692573), (81, 2491119), (123, 1640493), (129, 1564191), (157, 1285227), (243, 830373), (369, 546831), (387, 521397), (471, 428409), (729, 276791), (1107, 182277), (1161, 173799), (1413, 142803), (1763, 114453), (3321, 60759), (3483, 57933), (4239, 47601), (5289, 38151), (6437, 31347), (6751, 29889), (9963, 20253), (10449, 19311), (12717, 15867)]