20890728

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15271}}^1$

素因数の和:15302

約数の個数: 48

約数和(自身を含む): 59560800

約数和(自身を除く): 38670072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15271, 30542, 45813, 61084, 91626, 122168, 137439, 183252, 274878, 290149, 366504, 549756, 580298, 870447, 1099512, 1160596, 1740894, 2321192, 2611341, 3481788, 5222682, 6963576, 10445364, 20890728]

約数ペア:

[(1, 20890728), (2, 10445364), (3, 6963576), (4, 5222682), (6, 3481788), (8, 2611341), (9, 2321192), (12, 1740894), (18, 1160596), (19, 1099512), (24, 870447), (36, 580298), (38, 549756), (57, 366504), (72, 290149), (76, 274878), (114, 183252), (152, 137439), (171, 122168), (228, 91626), (342, 61084), (456, 45813), (684, 30542), (1368, 15271)]