28451556

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{127}}^2$

素因数の和:278

約数の個数: 81

約数和(自身を含む): 84325059

約数和(自身を除く): 55873503

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 127, 147, 196, 252, 254, 294, 381, 441, 508, 588, 762, 882, 889, 1143, 1524, 1764, 1778, 2286, 2667, 3556, 4572, 5334, 6223, 8001, 10668, 12446, 16002, 16129, 18669, 24892, 32004, 32258, 37338, 48387, 56007, 64516, 74676, 96774, 112014, 112903, 145161, 193548, 224028, 225806, 290322, 338709, 451612, 580644, 677418, 790321, 1016127, 1354836, 1580642, 2032254, 2370963, 3161284, 4064508, 4741926, 7112889, 9483852, 14225778, 28451556]

約数ペア:

[(1, 28451556), (2, 14225778), (3, 9483852), (4, 7112889), (6, 4741926), (7, 4064508), (9, 3161284), (12, 2370963), (14, 2032254), (18, 1580642), (21, 1354836), (28, 1016127), (36, 790321), (42, 677418), (49, 580644), (63, 451612), (84, 338709), (98, 290322), (126, 225806), (127, 224028), (147, 193548), (196, 145161), (252, 112903), (254, 112014), (294, 96774), (381, 74676), (441, 64516), (508, 56007), (588, 48387), (762, 37338), (882, 32258), (889, 32004), (1143, 24892), (1524, 18669), (1764, 16129), (1778, 16002), (2286, 12446), (2667, 10668), (3556, 8001), (4572, 6223)]