20438375

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{7109}}^1$

素因数の和:7147

約数の個数: 16

約数和(自身を含む): 26619840

約数和(自身を除く): 6181465

約数列:

[1, 5, 23, 25, 115, 125, 575, 2875, 7109, 35545, 163507, 177725, 817535, 888625, 4087675, 20438375]

約数ペア:

[(1, 20438375), (5, 4087675), (23, 888625), (25, 817535), (115, 177725), (125, 163507), (575, 35545), (2875, 7109)]