81274732

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:212

約数の個数: 108

約数和(自身を含む): 191041200

約数和(自身を除く): 109766468

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 77, 92, 98, 121, 149, 154, 161, 196, 242, 253, 298, 308, 322, 484, 506, 539, 596, 644, 847, 1012, 1043, 1078, 1127, 1639, 1694, 1771, 2086, 2156, 2254, 2783, 3278, 3388, 3427, 3542, 4172, 4508, 5566, 5929, 6556, 6854, 7084, 7301, 11132, 11473, 11858, 12397, 13708, 14602, 18029, 19481, 22946, 23716, 23989, 24794, 29204, 36058, 37697, 38962, 45892, 47978, 49588, 72116, 75394, 77924, 80311, 95956, 126203, 136367, 150788, 160622, 167923, 252406, 263879, 272734, 321244, 335846, 414667, 504812, 527758, 545468, 671692, 829334, 883421, 1055516, 1658668, 1766842, 1847153, 2902669, 3533684, 3694306, 5805338, 7388612, 11610676, 20318683, 40637366, 81274732]

約数ペア:

[(1, 81274732), (2, 40637366), (4, 20318683), (7, 11610676), (11, 7388612), (14, 5805338), (22, 3694306), (23, 3533684), (28, 2902669), (44, 1847153), (46, 1766842), (49, 1658668), (77, 1055516), (92, 883421), (98, 829334), (121, 671692), (149, 545468), (154, 527758), (161, 504812), (196, 414667), (242, 335846), (253, 321244), (298, 272734), (308, 263879), (322, 252406), (484, 167923), (506, 160622), (539, 150788), (596, 136367), (644, 126203), (847, 95956), (1012, 80311), (1043, 77924), (1078, 75394), (1127, 72116), (1639, 49588), (1694, 47978), (1771, 45892), (2086, 38962), (2156, 37697), (2254, 36058), (2783, 29204), (3278, 24794), (3388, 23989), (3427, 23716), (3542, 22946), (4172, 19481), (4508, 18029), (5566, 14602), (5929, 13708), (6556, 12397), (6854, 11858), (7084, 11473), (7301, 11132)]