81373264

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1019}}^1$

素因数の和:1088

約数の個数: 80

約数和(自身を含む): 194273280

約数和(自身を除く): 112900016

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 46, 56, 62, 92, 112, 124, 161, 184, 217, 248, 322, 368, 434, 496, 644, 713, 868, 1019, 1288, 1426, 1736, 2038, 2576, 2852, 3472, 4076, 4991, 5704, 7133, 8152, 9982, 11408, 14266, 16304, 19964, 23437, 28532, 31589, 39928, 46874, 57064, 63178, 79856, 93748, 114128, 126356, 164059, 187496, 221123, 252712, 328118, 374992, 442246, 505424, 656236, 726547, 884492, 1312472, 1453094, 1768984, 2624944, 2906188, 3537968, 5085829, 5812376, 10171658, 11624752, 20343316, 40686632, 81373264]

約数ペア:

[(1, 81373264), (2, 40686632), (4, 20343316), (7, 11624752), (8, 10171658), (14, 5812376), (16, 5085829), (23, 3537968), (28, 2906188), (31, 2624944), (46, 1768984), (56, 1453094), (62, 1312472), (92, 884492), (112, 726547), (124, 656236), (161, 505424), (184, 442246), (217, 374992), (248, 328118), (322, 252712), (368, 221123), (434, 187496), (496, 164059), (644, 126356), (713, 114128), (868, 93748), (1019, 79856), (1288, 63178), (1426, 57064), (1736, 46874), (2038, 39928), (2576, 31589), (2852, 28532), (3472, 23437), (4076, 19964), (4991, 16304), (5704, 14266), (7133, 11408), (8152, 9982)]