20357075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2567

約数の個数: 24

約数和(自身を含む): 28145520

約数和(自身を除く): 7788445

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2521, 8075, 12605, 42857, 47899, 63025, 214285, 239495, 814283, 1071425, 1197475, 4071415, 20357075]

約数ペア:

[(1, 20357075), (5, 4071415), (17, 1197475), (19, 1071425), (25, 814283), (85, 239495), (95, 214285), (323, 63025), (425, 47899), (475, 42857), (1615, 12605), (2521, 8075)]