2558902760

素因数分解:

$2^3\times 5^1\times {\mathrm{63972569}}^1$

素因数の和:63972580

約数の個数: 16

約数和(自身を含む): 5757531300

約数和(自身を除く): 3198628540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 63972569, 127945138, 255890276, 319862845, 511780552, 639725690, 1279451380, 2558902760]

約数ペア:

[(1, 2558902760), (2, 1279451380), (4, 639725690), (5, 511780552), (8, 319862845), (10, 255890276), (20, 127945138), (40, 63972569)]