820151388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2104

約数の個数: 144

約数和(自身を含む): 2508420096

約数和(自身を除く): 1688268708

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 71, 84, 92, 126, 138, 142, 161, 207, 213, 252, 276, 284, 322, 414, 426, 483, 497, 639, 644, 828, 852, 966, 994, 1278, 1449, 1491, 1633, 1932, 1988, 1993, 2556, 2898, 2982, 3266, 3986, 4473, 4899, 5796, 5964, 5979, 6532, 7972, 8946, 9798, 11431, 11958, 13951, 14697, 17892, 17937, 19596, 22862, 23916, 27902, 29394, 34293, 35874, 41853, 45724, 45839, 55804, 58788, 68586, 71748, 83706, 91678, 102879, 125559, 137172, 137517, 141503, 167412, 183356, 205758, 251118, 275034, 283006, 320873, 411516, 412551, 424509, 502236, 550068, 566012, 641746, 825102, 849018, 962619, 990521, 1273527, 1283492, 1650204, 1698036, 1925238, 1981042, 2547054, 2887857, 2971563, 3254569, 3850476, 3962084, 5094108, 5775714, 5943126, 6509138, 8914689, 9763707, 11551428, 11886252, 13018276, 17829378, 19527414, 22781983, 29291121, 35658756, 39054828, 45563966, 58582242, 68345949, 91127932, 117164484, 136691898, 205037847, 273383796, 410075694, 820151388]

約数ペア:

[(1, 820151388), (2, 410075694), (3, 273383796), (4, 205037847), (6, 136691898), (7, 117164484), (9, 91127932), (12, 68345949), (14, 58582242), (18, 45563966), (21, 39054828), (23, 35658756), (28, 29291121), (36, 22781983), (42, 19527414), (46, 17829378), (63, 13018276), (69, 11886252), (71, 11551428), (84, 9763707), (92, 8914689), (126, 6509138), (138, 5943126), (142, 5775714), (161, 5094108), (207, 3962084), (213, 3850476), (252, 3254569), (276, 2971563), (284, 2887857), (322, 2547054), (414, 1981042), (426, 1925238), (483, 1698036), (497, 1650204), (639, 1283492), (644, 1273527), (828, 990521), (852, 962619), (966, 849018), (994, 825102), (1278, 641746), (1449, 566012), (1491, 550068), (1633, 502236), (1932, 424509), (1988, 412551), (1993, 411516), (2556, 320873), (2898, 283006), (2982, 275034), (3266, 251118), (3986, 205758), (4473, 183356), (4899, 167412), (5796, 141503), (5964, 137517), (5979, 137172), (6532, 125559), (7972, 102879), (8946, 91678), (9798, 83706), (11431, 71748), (11958, 68586), (13951, 58788), (14697, 55804), (17892, 45839), (17937, 45724), (19596, 41853), (22862, 35874), (23916, 34293), (27902, 29394)]