20770288

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{733}}^1$

素因数の和:782

約数の個数: 80

約数和(自身を含む): 52425216

約数和(自身を除く): 31654928

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 44, 46, 56, 77, 88, 92, 112, 154, 161, 176, 184, 253, 308, 322, 368, 506, 616, 644, 733, 1012, 1232, 1288, 1466, 1771, 2024, 2576, 2932, 3542, 4048, 5131, 5864, 7084, 8063, 10262, 11728, 14168, 16126, 16859, 20524, 28336, 32252, 33718, 41048, 56441, 64504, 67436, 82096, 112882, 118013, 129008, 134872, 185449, 225764, 236026, 269744, 370898, 451528, 472052, 741796, 903056, 944104, 1298143, 1483592, 1888208, 2596286, 2967184, 5192572, 10385144, 20770288]

約数ペア:

[(1, 20770288), (2, 10385144), (4, 5192572), (7, 2967184), (8, 2596286), (11, 1888208), (14, 1483592), (16, 1298143), (22, 944104), (23, 903056), (28, 741796), (44, 472052), (46, 451528), (56, 370898), (77, 269744), (88, 236026), (92, 225764), (112, 185449), (154, 134872), (161, 129008), (176, 118013), (184, 112882), (253, 82096), (308, 67436), (322, 64504), (368, 56441), (506, 41048), (616, 33718), (644, 32252), (733, 28336), (1012, 20524), (1232, 16859), (1288, 16126), (1466, 14168), (1771, 11728), (2024, 10262), (2576, 8063), (2932, 7084), (3542, 5864), (4048, 5131)]