81420885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 177166080

約数和(自身を除く): 95745195

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 59, 63, 65, 91, 105, 117, 177, 195, 273, 295, 315, 337, 413, 455, 531, 585, 767, 819, 885, 1011, 1239, 1365, 1685, 2065, 2301, 2359, 2655, 3033, 3717, 3835, 4095, 4381, 5055, 5369, 6195, 6903, 7077, 11505, 11795, 13143, 15165, 16107, 18585, 19883, 21231, 21905, 26845, 30667, 34515, 35385, 39429, 48321, 59649, 65715, 80535, 92001, 99415, 106155, 139181, 153335, 178947, 197145, 241605, 258479, 276003, 298245, 417543, 460005, 695905, 775437, 894735, 1252629, 1292395, 1380015, 1809353, 2087715, 2326311, 3877185, 5428059, 6263145, 9046765, 11631555, 16284177, 27140295, 81420885]

約数ペア:

[(1, 81420885), (3, 27140295), (5, 16284177), (7, 11631555), (9, 9046765), (13, 6263145), (15, 5428059), (21, 3877185), (35, 2326311), (39, 2087715), (45, 1809353), (59, 1380015), (63, 1292395), (65, 1252629), (91, 894735), (105, 775437), (117, 695905), (177, 460005), (195, 417543), (273, 298245), (295, 276003), (315, 258479), (337, 241605), (413, 197145), (455, 178947), (531, 153335), (585, 139181), (767, 106155), (819, 99415), (885, 92001), (1011, 80535), (1239, 65715), (1365, 59649), (1685, 48321), (2065, 39429), (2301, 35385), (2359, 34515), (2655, 30667), (3033, 26845), (3717, 21905), (3835, 21231), (4095, 19883), (4381, 18585), (5055, 16107), (5369, 15165), (6195, 13143), (6903, 11795), (7077, 11505)]