19994125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{97}}^2$

素因数の和:226

約数の個数: 24

約数和(自身を含む): 26695656

約数和(自身を除く): 6701531

約数列:

[1, 5, 17, 25, 85, 97, 125, 425, 485, 1649, 2125, 2425, 8245, 9409, 12125, 41225, 47045, 159953, 206125, 235225, 799765, 1176125, 3998825, 19994125]

約数ペア:

[(1, 19994125), (5, 3998825), (17, 1176125), (25, 799765), (85, 235225), (97, 206125), (125, 159953), (425, 47045), (485, 41225), (1649, 12125), (2125, 9409), (2425, 8245)]