81720639

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 162699264

約数和(自身を除く): 80978625

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 47, 63, 77, 91, 99, 117, 141, 143, 193, 231, 273, 329, 423, 429, 517, 579, 611, 693, 819, 987, 1001, 1287, 1351, 1551, 1737, 1833, 2123, 2509, 2961, 3003, 3619, 4053, 4277, 4653, 5499, 6369, 6721, 7527, 9009, 9071, 10857, 12159, 12831, 14861, 17563, 19107, 20163, 22581, 27213, 27599, 32571, 38493, 44583, 47047, 52689, 60489, 63497, 81639, 82797, 99781, 117923, 133749, 141141, 158067, 190491, 193193, 248391, 299343, 353769, 423423, 571473, 579579, 698467, 825461, 898029, 1061307, 1297153, 1738737, 2095401, 2476383, 3891459, 6286203, 7429149, 9080071, 11674377, 27240213, 81720639]

約数ペア:

[(1, 81720639), (3, 27240213), (7, 11674377), (9, 9080071), (11, 7429149), (13, 6286203), (21, 3891459), (33, 2476383), (39, 2095401), (47, 1738737), (63, 1297153), (77, 1061307), (91, 898029), (99, 825461), (117, 698467), (141, 579579), (143, 571473), (193, 423423), (231, 353769), (273, 299343), (329, 248391), (423, 193193), (429, 190491), (517, 158067), (579, 141141), (611, 133749), (693, 117923), (819, 99781), (987, 82797), (1001, 81639), (1287, 63497), (1351, 60489), (1551, 52689), (1737, 47047), (1833, 44583), (2123, 38493), (2509, 32571), (2961, 27599), (3003, 27213), (3619, 22581), (4053, 20163), (4277, 19107), (4653, 17563), (5499, 14861), (6369, 12831), (6721, 12159), (7527, 10857), (9009, 9071)]