81161220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1117}}^1$

素因数の和:1309

約数の個数: 96

約数和(自身を含む): 261451008

約数和(自身を除く): 180289788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 173, 210, 346, 420, 519, 692, 865, 1038, 1117, 1211, 1730, 2076, 2234, 2422, 2595, 3351, 3460, 3633, 4468, 4844, 5190, 5585, 6055, 6702, 7266, 7819, 10380, 11170, 12110, 13404, 14532, 15638, 16755, 18165, 22340, 23457, 24220, 31276, 33510, 36330, 39095, 46914, 67020, 72660, 78190, 93828, 117285, 156380, 193241, 234570, 386482, 469140, 579723, 772964, 966205, 1159446, 1352687, 1932410, 2318892, 2705374, 2898615, 3864820, 4058061, 5410748, 5797230, 6763435, 8116122, 11594460, 13526870, 16232244, 20290305, 27053740, 40580610, 81161220]

約数ペア:

[(1, 81161220), (2, 40580610), (3, 27053740), (4, 20290305), (5, 16232244), (6, 13526870), (7, 11594460), (10, 8116122), (12, 6763435), (14, 5797230), (15, 5410748), (20, 4058061), (21, 3864820), (28, 2898615), (30, 2705374), (35, 2318892), (42, 1932410), (60, 1352687), (70, 1159446), (84, 966205), (105, 772964), (140, 579723), (173, 469140), (210, 386482), (346, 234570), (420, 193241), (519, 156380), (692, 117285), (865, 93828), (1038, 78190), (1117, 72660), (1211, 67020), (1730, 46914), (2076, 39095), (2234, 36330), (2422, 33510), (2595, 31276), (3351, 24220), (3460, 23457), (3633, 22340), (4468, 18165), (4844, 16755), (5190, 15638), (5585, 14532), (6055, 13404), (6702, 12110), (7266, 11170), (7819, 10380)]