18565025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 24373440

約数和(自身を除く): 5808415

約数列:

[1, 5, 23, 25, 83, 115, 389, 415, 575, 1909, 1945, 2075, 8947, 9545, 9725, 32287, 44735, 47725, 161435, 223675, 742601, 807175, 3713005, 18565025]

約数ペア:

[(1, 18565025), (5, 3713005), (23, 807175), (25, 742601), (83, 223675), (115, 161435), (389, 47725), (415, 44735), (575, 32287), (1909, 9725), (1945, 9545), (2075, 8947)]