28256715

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{5657}}^1$

素因数の和:5708

約数の個数: 32

約数和(自身を含む): 51600960

約数和(自身を除く): 23344245

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 5657, 16971, 28285, 50913, 84855, 152739, 209309, 254565, 627927, 763695, 1046545, 1883781, 3139635, 5651343, 9418905, 28256715]

約数ペア:

[(1, 28256715), (3, 9418905), (5, 5651343), (9, 3139635), (15, 1883781), (27, 1046545), (37, 763695), (45, 627927), (111, 254565), (135, 209309), (185, 152739), (333, 84855), (555, 50913), (999, 28285), (1665, 16971), (4995, 5657)]