28711452

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 89171712

約数和(自身を除く): 60460260

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 23, 28, 33, 42, 44, 46, 49, 66, 69, 77, 84, 92, 98, 132, 138, 147, 154, 161, 193, 196, 231, 253, 276, 294, 308, 322, 386, 462, 483, 506, 539, 579, 588, 644, 759, 772, 924, 966, 1012, 1078, 1127, 1158, 1351, 1518, 1617, 1771, 1932, 2123, 2156, 2254, 2316, 2702, 3036, 3234, 3381, 3542, 4053, 4246, 4439, 4508, 5313, 5404, 6369, 6468, 6762, 7084, 8106, 8492, 8878, 9457, 10626, 12397, 12738, 13317, 13524, 14861, 16212, 17756, 18914, 21252, 24794, 25476, 26634, 28371, 29722, 31073, 37191, 37828, 44583, 48829, 49588, 53268, 56742, 59444, 62146, 74382, 89166, 93219, 97658, 104027, 113484, 124292, 146487, 148764, 178332, 186438, 195316, 208054, 217511, 292974, 312081, 341803, 372876, 416108, 435022, 585948, 624162, 652533, 683606, 870044, 1025409, 1248324, 1305066, 1367212, 2050818, 2392621, 2610132, 4101636, 4785242, 7177863, 9570484, 14355726, 28711452]

約数ペア:

[(1, 28711452), (2, 14355726), (3, 9570484), (4, 7177863), (6, 4785242), (7, 4101636), (11, 2610132), (12, 2392621), (14, 2050818), (21, 1367212), (22, 1305066), (23, 1248324), (28, 1025409), (33, 870044), (42, 683606), (44, 652533), (46, 624162), (49, 585948), (66, 435022), (69, 416108), (77, 372876), (84, 341803), (92, 312081), (98, 292974), (132, 217511), (138, 208054), (147, 195316), (154, 186438), (161, 178332), (193, 148764), (196, 146487), (231, 124292), (253, 113484), (276, 104027), (294, 97658), (308, 93219), (322, 89166), (386, 74382), (462, 62146), (483, 59444), (506, 56742), (539, 53268), (579, 49588), (588, 48829), (644, 44583), (759, 37828), (772, 37191), (924, 31073), (966, 29722), (1012, 28371), (1078, 26634), (1127, 25476), (1158, 24794), (1351, 21252), (1518, 18914), (1617, 17756), (1771, 16212), (1932, 14861), (2123, 13524), (2156, 13317), (2254, 12738), (2316, 12397), (2702, 10626), (3036, 9457), (3234, 8878), (3381, 8492), (3542, 8106), (4053, 7084), (4246, 6762), (4439, 6468), (4508, 6369), (5313, 5404)]