81711756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6899}}^1$

素因数の和:6963

約数の個数: 72

約数和(自身を含む): 241113600

約数和(自身を除く): 159401844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 47, 63, 84, 94, 126, 141, 188, 252, 282, 329, 423, 564, 658, 846, 987, 1316, 1692, 1974, 2961, 3948, 5922, 6899, 11844, 13798, 20697, 27596, 41394, 48293, 62091, 82788, 96586, 124182, 144879, 193172, 248364, 289758, 324253, 434637, 579516, 648506, 869274, 972759, 1297012, 1738548, 1945518, 2269771, 2918277, 3891036, 4539542, 5836554, 6809313, 9079084, 11673108, 13618626, 20427939, 27237252, 40855878, 81711756]

約数ペア:

[(1, 81711756), (2, 40855878), (3, 27237252), (4, 20427939), (6, 13618626), (7, 11673108), (9, 9079084), (12, 6809313), (14, 5836554), (18, 4539542), (21, 3891036), (28, 2918277), (36, 2269771), (42, 1945518), (47, 1738548), (63, 1297012), (84, 972759), (94, 869274), (126, 648506), (141, 579516), (188, 434637), (252, 324253), (282, 289758), (329, 248364), (423, 193172), (564, 144879), (658, 124182), (846, 96586), (987, 82788), (1316, 62091), (1692, 48293), (1974, 41394), (2961, 27596), (3948, 20697), (5922, 13798), (6899, 11844)]