20678196

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 144

約数和(自身を含む): 64350720

約数和(自身を除く): 43672524

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, 139, 147, 154, 161, 196, 231, 253, 276, 278, 294, 308, 322, 417, 462, 483, 506, 539, 556, 588, 644, 759, 834, 924, 966, 973, 1012, 1078, 1127, 1518, 1529, 1617, 1668, 1771, 1932, 1946, 2156, 2254, 2919, 3036, 3058, 3197, 3234, 3381, 3542, 3892, 4508, 4587, 5313, 5838, 6116, 6394, 6468, 6762, 6811, 7084, 9174, 9591, 10626, 10703, 11676, 12397, 12788, 13524, 13622, 18348, 19182, 20433, 21252, 21406, 22379, 24794, 27244, 32109, 35167, 37191, 38364, 40866, 42812, 44758, 49588, 64218, 67137, 70334, 74382, 74921, 81732, 89516, 105501, 128436, 134274, 140668, 148764, 149842, 156653, 211002, 224763, 246169, 268548, 299684, 313306, 422004, 449526, 469959, 492338, 626612, 738507, 899052, 939918, 984676, 1477014, 1723183, 1879836, 2954028, 3446366, 5169549, 6892732, 10339098, 20678196]

約数ペア:

[(1, 20678196), (2, 10339098), (3, 6892732), (4, 5169549), (6, 3446366), (7, 2954028), (11, 1879836), (12, 1723183), (14, 1477014), (21, 984676), (22, 939918), (23, 899052), (28, 738507), (33, 626612), (42, 492338), (44, 469959), (46, 449526), (49, 422004), (66, 313306), (69, 299684), (77, 268548), (84, 246169), (92, 224763), (98, 211002), (132, 156653), (138, 149842), (139, 148764), (147, 140668), (154, 134274), (161, 128436), (196, 105501), (231, 89516), (253, 81732), (276, 74921), (278, 74382), (294, 70334), (308, 67137), (322, 64218), (417, 49588), (462, 44758), (483, 42812), (506, 40866), (539, 38364), (556, 37191), (588, 35167), (644, 32109), (759, 27244), (834, 24794), (924, 22379), (966, 21406), (973, 21252), (1012, 20433), (1078, 19182), (1127, 18348), (1518, 13622), (1529, 13524), (1617, 12788), (1668, 12397), (1771, 11676), (1932, 10703), (1946, 10626), (2156, 9591), (2254, 9174), (2919, 7084), (3036, 6811), (3058, 6762), (3197, 6468), (3234, 6394), (3381, 6116), (3542, 5838), (3892, 5313), (4508, 4587)]