90804987

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 168307776

約数和(自身を除く): 77502789

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 49, 63, 91, 117, 141, 147, 273, 329, 337, 423, 441, 611, 637, 819, 987, 1011, 1833, 1911, 2303, 2359, 2961, 3033, 4277, 4381, 5499, 5733, 6909, 7077, 12831, 13143, 15839, 16513, 20727, 21231, 29939, 30667, 38493, 39429, 47517, 49539, 89817, 92001, 110873, 142551, 148617, 205907, 214669, 269451, 276003, 332619, 617721, 644007, 776111, 997857, 1441349, 1853163, 1932021, 2328333, 4324047, 6984999, 10089443, 12972141, 30268329, 90804987]

約数ペア:

[(1, 90804987), (3, 30268329), (7, 12972141), (9, 10089443), (13, 6984999), (21, 4324047), (39, 2328333), (47, 1932021), (49, 1853163), (63, 1441349), (91, 997857), (117, 776111), (141, 644007), (147, 617721), (273, 332619), (329, 276003), (337, 269451), (423, 214669), (441, 205907), (611, 148617), (637, 142551), (819, 110873), (987, 92001), (1011, 89817), (1833, 49539), (1911, 47517), (2303, 39429), (2359, 38493), (2961, 30667), (3033, 29939), (4277, 21231), (4381, 20727), (5499, 16513), (5733, 15839), (6909, 13143), (7077, 12831)]