128581625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{60509}}^1$

素因数の和:60541

約数の個数: 16

約数和(自身を含む): 169912080

約数和(自身を除く): 41330455

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 60509, 302545, 1028653, 1512725, 5143265, 7563625, 25716325, 128581625]

約数ペア:

[(1, 128581625), (5, 25716325), (17, 7563625), (25, 5143265), (85, 1512725), (125, 1028653), (425, 302545), (2125, 60509)]