20505144

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 58988160

約数和(自身を除く): 38483016

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 23, 24, 33, 44, 46, 66, 69, 88, 92, 121, 132, 138, 184, 242, 253, 264, 276, 307, 363, 484, 506, 552, 614, 726, 759, 921, 968, 1012, 1228, 1452, 1518, 1842, 2024, 2456, 2783, 2904, 3036, 3377, 3684, 5566, 6072, 6754, 7061, 7368, 8349, 10131, 11132, 13508, 14122, 16698, 20262, 21183, 22264, 27016, 28244, 33396, 37147, 40524, 42366, 56488, 66792, 74294, 77671, 81048, 84732, 111441, 148588, 155342, 169464, 222882, 233013, 297176, 310684, 445764, 466026, 621368, 854381, 891528, 932052, 1708762, 1864104, 2563143, 3417524, 5126286, 6835048, 10252572, 20505144]

約数ペア:

[(1, 20505144), (2, 10252572), (3, 6835048), (4, 5126286), (6, 3417524), (8, 2563143), (11, 1864104), (12, 1708762), (22, 932052), (23, 891528), (24, 854381), (33, 621368), (44, 466026), (46, 445764), (66, 310684), (69, 297176), (88, 233013), (92, 222882), (121, 169464), (132, 155342), (138, 148588), (184, 111441), (242, 84732), (253, 81048), (264, 77671), (276, 74294), (307, 66792), (363, 56488), (484, 42366), (506, 40524), (552, 37147), (614, 33396), (726, 28244), (759, 27016), (921, 22264), (968, 21183), (1012, 20262), (1228, 16698), (1452, 14122), (1518, 13508), (1842, 11132), (2024, 10131), (2456, 8349), (2783, 7368), (2904, 7061), (3036, 6754), (3377, 6072), (3684, 5566)]