217030075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1987}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 286200432

約数和(自身を除く): 69170357

約数列:

[1, 5, 17, 25, 85, 257, 425, 1285, 1987, 4369, 6425, 9935, 21845, 33779, 49675, 109225, 168895, 510659, 844475, 2553295, 8681203, 12766475, 43406015, 217030075]

約数ペア:

[(1, 217030075), (5, 43406015), (17, 12766475), (25, 8681203), (85, 2553295), (257, 844475), (425, 510659), (1285, 168895), (1987, 109225), (4369, 49675), (6425, 33779), (9935, 21845)]