28151816

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2034

約数の個数: 64

約数和(自身を含む): 68705280

約数和(自身を除く): 40553464

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 77, 88, 92, 154, 161, 184, 253, 308, 322, 506, 616, 644, 1012, 1288, 1771, 1987, 2024, 3542, 3974, 7084, 7948, 13909, 14168, 15896, 21857, 27818, 43714, 45701, 55636, 87428, 91402, 111272, 152999, 174856, 182804, 305998, 319907, 365608, 502711, 611996, 639814, 1005422, 1223992, 1279628, 2010844, 2559256, 3518977, 4021688, 7037954, 14075908, 28151816]

約数ペア:

[(1, 28151816), (2, 14075908), (4, 7037954), (7, 4021688), (8, 3518977), (11, 2559256), (14, 2010844), (22, 1279628), (23, 1223992), (28, 1005422), (44, 639814), (46, 611996), (56, 502711), (77, 365608), (88, 319907), (92, 305998), (154, 182804), (161, 174856), (184, 152999), (253, 111272), (308, 91402), (322, 87428), (506, 55636), (616, 45701), (644, 43714), (1012, 27818), (1288, 21857), (1771, 15896), (1987, 14168), (2024, 13909), (3542, 7948), (3974, 7084)]