81487616

素因数分解:

$2^8\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1289

約数の個数: 72

約数和(自身を含む): 191073120

約数和(自身を除く): 109585504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 256, 259, 296, 448, 518, 592, 896, 1036, 1184, 1229, 1792, 2072, 2368, 2458, 4144, 4736, 4916, 8288, 8603, 9472, 9832, 16576, 17206, 19664, 33152, 34412, 39328, 45473, 66304, 68824, 78656, 90946, 137648, 157312, 181892, 275296, 314624, 318311, 363784, 550592, 636622, 727568, 1101184, 1273244, 1455136, 2202368, 2546488, 2910272, 5092976, 5820544, 10185952, 11641088, 20371904, 40743808, 81487616]

約数ペア:

[(1, 81487616), (2, 40743808), (4, 20371904), (7, 11641088), (8, 10185952), (14, 5820544), (16, 5092976), (28, 2910272), (32, 2546488), (37, 2202368), (56, 1455136), (64, 1273244), (74, 1101184), (112, 727568), (128, 636622), (148, 550592), (224, 363784), (256, 318311), (259, 314624), (296, 275296), (448, 181892), (518, 157312), (592, 137648), (896, 90946), (1036, 78656), (1184, 68824), (1229, 66304), (1792, 45473), (2072, 39328), (2368, 34412), (2458, 33152), (4144, 19664), (4736, 17206), (4916, 16576), (8288, 9832), (8603, 9472)]