20078049341

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 128

約数和(自身を含む): 27648000000

約数和(自身を除く): 7569950659

約数列:

[1, 7, 19, 23, 29, 31, 49, 133, 149, 161, 203, 217, 343, 437, 551, 589, 667, 713, 899, 931, 1043, 1127, 1421, 1519, 2831, 3059, 3427, 3857, 4123, 4321, 4619, 4669, 4991, 6293, 6517, 7301, 7889, 9947, 10633, 12673, 13547, 17081, 19817, 20677, 21413, 23989, 26999, 28861, 30247, 32333, 32683, 34937, 44051, 51107, 65113, 82099, 87761, 88711, 94829, 99383, 106237, 119567, 133951, 138719, 144739, 149891, 167923, 188993, 202027, 211729, 226331, 228781, 244559, 308357, 392863, 455791, 574693, 614327, 620977, 663803, 695681, 743659, 836969, 937657, 971033, 1013173, 1175461, 1482103, 1584317, 1888277, 2018503, 2545069, 2750041, 3080873, 3190537, 4022851, 4300289, 4346839, 4646621, 4869767, 5205613, 5858783, 6563599, 7092211, 13217939, 14129521, 17815483, 19250287, 21566111, 22333759, 28159957, 30102023, 34088369, 36439291, 45945193, 58536587, 92525573, 98906647, 124708381, 134752009, 150962777, 409756109, 647679011, 692346529, 872958667, 1056739439, 2868292763, 20078049341]

約数ペア:

[(1, 20078049341), (7, 2868292763), (19, 1056739439), (23, 872958667), (29, 692346529), (31, 647679011), (49, 409756109), (133, 150962777), (149, 134752009), (161, 124708381), (203, 98906647), (217, 92525573), (343, 58536587), (437, 45945193), (551, 36439291), (589, 34088369), (667, 30102023), (713, 28159957), (899, 22333759), (931, 21566111), (1043, 19250287), (1127, 17815483), (1421, 14129521), (1519, 13217939), (2831, 7092211), (3059, 6563599), (3427, 5858783), (3857, 5205613), (4123, 4869767), (4321, 4646621), (4619, 4346839), (4669, 4300289), (4991, 4022851), (6293, 3190537), (6517, 3080873), (7301, 2750041), (7889, 2545069), (9947, 2018503), (10633, 1888277), (12673, 1584317), (13547, 1482103), (17081, 1175461), (19817, 1013173), (20677, 971033), (21413, 937657), (23989, 836969), (26999, 743659), (28861, 695681), (30247, 663803), (32333, 620977), (32683, 614327), (34937, 574693), (44051, 455791), (51107, 392863), (65113, 308357), (82099, 244559), (87761, 228781), (88711, 226331), (94829, 211729), (99383, 202027), (106237, 188993), (119567, 167923), (133951, 149891), (138719, 144739)]