28279120

素因数分解:

$2^4\times 5^1\times {\mathrm{353489}}^1$

素因数の和:353502

約数の個数: 20

約数和(自身を含む): 65749140

約数和(自身を除く): 37470020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353489, 706978, 1413956, 1767445, 2827912, 3534890, 5655824, 7069780, 14139560, 28279120]

約数ペア:

[(1, 28279120), (2, 14139560), (4, 7069780), (5, 5655824), (8, 3534890), (10, 2827912), (16, 1767445), (20, 1413956), (40, 706978), (80, 353489)]