80640320

素因数分解:

$2^6\times 5^1\times {\mathrm{252001}}^1$

素因数の和:252018

約数の個数: 28

約数和(自身を含む): 192025524

約数和(自身を除く): 111385204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 252001, 504002, 1008004, 1260005, 2016008, 2520010, 4032016, 5040020, 8064032, 10080040, 16128064, 20160080, 40320160, 80640320]

約数ペア:

[(1, 80640320), (2, 40320160), (4, 20160080), (5, 16128064), (8, 10080040), (10, 8064032), (16, 5040020), (20, 4032016), (32, 2520010), (40, 2016008), (64, 1260005), (80, 1008004), (160, 504002), (320, 252001)]