81710265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1990

約数の個数: 64

約数和(自身を含む): 166182912

約数和(自身を除く): 84472647

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 65, 91, 93, 105, 155, 195, 217, 273, 403, 455, 465, 651, 1085, 1209, 1365, 1931, 2015, 2821, 3255, 5793, 6045, 8463, 9655, 13517, 14105, 25103, 28965, 40551, 42315, 59861, 67585, 75309, 125515, 175721, 179583, 202755, 299305, 376545, 419027, 527163, 778193, 878605, 897915, 1257081, 2095135, 2334579, 2635815, 3890965, 5447351, 6285405, 11672895, 16342053, 27236755, 81710265]

約数ペア:

[(1, 81710265), (3, 27236755), (5, 16342053), (7, 11672895), (13, 6285405), (15, 5447351), (21, 3890965), (31, 2635815), (35, 2334579), (39, 2095135), (65, 1257081), (91, 897915), (93, 878605), (105, 778193), (155, 527163), (195, 419027), (217, 376545), (273, 299305), (403, 202755), (455, 179583), (465, 175721), (651, 125515), (1085, 75309), (1209, 67585), (1365, 59861), (1931, 42315), (2015, 40551), (2821, 28965), (3255, 25103), (5793, 14105), (6045, 13517), (8463, 9655)]