81866568

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21187}}^1$

素因数の和:21226

約数の個数: 64

約数和(自身を含む): 244085760

約数和(自身を除く): 162219192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 56, 69, 84, 92, 138, 161, 168, 184, 276, 322, 483, 552, 644, 966, 1288, 1932, 3864, 21187, 42374, 63561, 84748, 127122, 148309, 169496, 254244, 296618, 444927, 487301, 508488, 593236, 889854, 974602, 1186472, 1461903, 1779708, 1949204, 2923806, 3411107, 3559416, 3898408, 5847612, 6822214, 10233321, 11695224, 13644428, 20466642, 27288856, 40933284, 81866568]

約数ペア:

[(1, 81866568), (2, 40933284), (3, 27288856), (4, 20466642), (6, 13644428), (7, 11695224), (8, 10233321), (12, 6822214), (14, 5847612), (21, 3898408), (23, 3559416), (24, 3411107), (28, 2923806), (42, 1949204), (46, 1779708), (56, 1461903), (69, 1186472), (84, 974602), (92, 889854), (138, 593236), (161, 508488), (168, 487301), (184, 444927), (276, 296618), (322, 254244), (483, 169496), (552, 148309), (644, 127122), (966, 84748), (1288, 63561), (1932, 42374), (3864, 21187)]