19780644

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 53625600

約数和(自身を除く): 33844956

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 37, 39, 46, 52, 69, 74, 78, 92, 111, 138, 148, 149, 156, 222, 276, 298, 299, 444, 447, 481, 596, 598, 851, 894, 897, 962, 1196, 1443, 1702, 1788, 1794, 1924, 1937, 2553, 2886, 3404, 3427, 3588, 3874, 5106, 5513, 5772, 5811, 6854, 7748, 10212, 10281, 11026, 11063, 11622, 13708, 16539, 20562, 22052, 22126, 23244, 33078, 33189, 41124, 44252, 44551, 66156, 66378, 71669, 89102, 126799, 132756, 133653, 143338, 178204, 215007, 253598, 267306, 286676, 380397, 430014, 507196, 534612, 760794, 860028, 1521588, 1648387, 3296774, 4945161, 6593548, 9890322, 19780644]

約数ペア:

[(1, 19780644), (2, 9890322), (3, 6593548), (4, 4945161), (6, 3296774), (12, 1648387), (13, 1521588), (23, 860028), (26, 760794), (37, 534612), (39, 507196), (46, 430014), (52, 380397), (69, 286676), (74, 267306), (78, 253598), (92, 215007), (111, 178204), (138, 143338), (148, 133653), (149, 132756), (156, 126799), (222, 89102), (276, 71669), (298, 66378), (299, 66156), (444, 44551), (447, 44252), (481, 41124), (596, 33189), (598, 33078), (851, 23244), (894, 22126), (897, 22052), (962, 20562), (1196, 16539), (1443, 13708), (1702, 11622), (1788, 11063), (1794, 11026), (1924, 10281), (1937, 10212), (2553, 7748), (2886, 6854), (3404, 5811), (3427, 5772), (3588, 5513), (3874, 5106)]