20244735

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 42816576

約数和(自身を除く): 22571841

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 37, 45, 63, 81, 105, 111, 135, 185, 189, 193, 259, 315, 333, 405, 555, 567, 579, 777, 945, 965, 999, 1295, 1351, 1665, 1737, 2331, 2835, 2895, 2997, 3885, 4053, 4995, 5211, 6755, 6993, 7141, 8685, 11655, 12159, 14985, 15633, 20265, 20979, 21423, 26055, 34965, 35705, 36477, 49987, 60795, 64269, 78165, 104895, 107115, 109431, 149961, 182385, 192807, 249935, 321345, 449883, 547155, 578421, 749805, 964035, 1349649, 2249415, 2892105, 4048947, 6748245, 20244735]

約数ペア:

[(1, 20244735), (3, 6748245), (5, 4048947), (7, 2892105), (9, 2249415), (15, 1349649), (21, 964035), (27, 749805), (35, 578421), (37, 547155), (45, 449883), (63, 321345), (81, 249935), (105, 192807), (111, 182385), (135, 149961), (185, 109431), (189, 107115), (193, 104895), (259, 78165), (315, 64269), (333, 60795), (405, 49987), (555, 36477), (567, 35705), (579, 34965), (777, 26055), (945, 21423), (965, 20979), (999, 20265), (1295, 15633), (1351, 14985), (1665, 12159), (1737, 11655), (2331, 8685), (2835, 7141), (2895, 6993), (2997, 6755), (3885, 5211), (4053, 4995)]