81432195

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 152678400

約数和(自身を除く): 71246205

約数列:

[1, 3, 5, 13, 15, 19, 31, 39, 57, 65, 93, 95, 155, 195, 247, 285, 403, 465, 589, 709, 741, 1209, 1235, 1767, 2015, 2127, 2945, 3545, 3705, 6045, 7657, 8835, 9217, 10635, 13471, 21979, 22971, 27651, 38285, 40413, 46085, 65937, 67355, 109895, 114855, 138255, 175123, 202065, 285727, 329685, 417601, 525369, 857181, 875615, 1252803, 1428635, 2088005, 2626845, 4285905, 5428813, 6264015, 16286439, 27144065, 81432195]

約数ペア:

[(1, 81432195), (3, 27144065), (5, 16286439), (13, 6264015), (15, 5428813), (19, 4285905), (31, 2626845), (39, 2088005), (57, 1428635), (65, 1252803), (93, 875615), (95, 857181), (155, 525369), (195, 417601), (247, 329685), (285, 285727), (403, 202065), (465, 175123), (589, 138255), (709, 114855), (741, 109895), (1209, 67355), (1235, 65937), (1767, 46085), (2015, 40413), (2127, 38285), (2945, 27651), (3545, 22971), (3705, 21979), (6045, 13471), (7657, 10635), (8835, 9217)]