28103504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 65245824

約数和(自身を除く): 37142320

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 71, 88, 104, 142, 143, 173, 176, 208, 284, 286, 346, 568, 572, 692, 781, 923, 1136, 1144, 1384, 1562, 1846, 1903, 2249, 2288, 2768, 3124, 3692, 3806, 4498, 6248, 7384, 7612, 8996, 10153, 12283, 12496, 14768, 15224, 17992, 20306, 24566, 24739, 30448, 35984, 40612, 49132, 49478, 81224, 98264, 98956, 135113, 159679, 162448, 196528, 197912, 270226, 319358, 395824, 540452, 638716, 1080904, 1277432, 1756469, 2161808, 2554864, 3512938, 7025876, 14051752, 28103504]

約数ペア:

[(1, 28103504), (2, 14051752), (4, 7025876), (8, 3512938), (11, 2554864), (13, 2161808), (16, 1756469), (22, 1277432), (26, 1080904), (44, 638716), (52, 540452), (71, 395824), (88, 319358), (104, 270226), (142, 197912), (143, 196528), (173, 162448), (176, 159679), (208, 135113), (284, 98956), (286, 98264), (346, 81224), (568, 49478), (572, 49132), (692, 40612), (781, 35984), (923, 30448), (1136, 24739), (1144, 24566), (1384, 20306), (1562, 17992), (1846, 15224), (1903, 14768), (2249, 12496), (2288, 12283), (2768, 10153), (3124, 8996), (3692, 7612), (3806, 7384), (4498, 6248)]