2781135

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{109}}^1$

素因数の和:139

約数の個数: 56

約数和(自身を含む): 5771040

約数和(自身を除く): 2989905

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 109, 135, 189, 243, 315, 327, 405, 545, 567, 729, 763, 945, 981, 1215, 1635, 1701, 2289, 2835, 2943, 3645, 3815, 4905, 5103, 6867, 8505, 8829, 11445, 14715, 20601, 25515, 26487, 34335, 44145, 61803, 79461, 103005, 132435, 185409, 309015, 397305, 556227, 927045, 2781135]

約数ペア:

[(1, 2781135), (3, 927045), (5, 556227), (7, 397305), (9, 309015), (15, 185409), (21, 132435), (27, 103005), (35, 79461), (45, 61803), (63, 44145), (81, 34335), (105, 26487), (109, 25515), (135, 20601), (189, 14715), (243, 11445), (315, 8829), (327, 8505), (405, 6867), (545, 5103), (567, 4905), (729, 3815), (763, 3645), (945, 2943), (981, 2835), (1215, 2289), (1635, 1701)]