2551280

素因数分解:

$2^4\times 5^1\times {\mathrm{31891}}^1$

素因数の和:31904

約数の個数: 20

約数和(自身を含む): 5931912

約数和(自身を除く): 3380632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31891, 63782, 127564, 159455, 255128, 318910, 510256, 637820, 1275640, 2551280]

約数ペア:

[(1, 2551280), (2, 1275640), (4, 637820), (5, 510256), (8, 318910), (10, 255128), (16, 159455), (20, 127564), (40, 63782), (80, 31891)]