517131520

素因数分解:

$2^8\times 5^1\times {\mathrm{404009}}^1$

素因数の和:404030

約数の個数: 36

約数和(自身を含む): 1238694660

約数和(自身を除く): 721563140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 404009, 808018, 1616036, 2020045, 3232072, 4040090, 6464144, 8080180, 12928288, 16160360, 25856576, 32320720, 51713152, 64641440, 103426304, 129282880, 258565760, 517131520]

約数ペア:

[(1, 517131520), (2, 258565760), (4, 129282880), (5, 103426304), (8, 64641440), (10, 51713152), (16, 32320720), (20, 25856576), (32, 16160360), (40, 12928288), (64, 8080180), (80, 6464144), (128, 4040090), (160, 3232072), (256, 2020045), (320, 1616036), (640, 808018), (1280, 404009)]