2489020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 5284944

約数和(自身を除く): 2795924

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1283, 1940, 2566, 5132, 6415, 12830, 25660, 124451, 248902, 497804, 622255, 1244510, 2489020]

約数ペア:

[(1, 2489020), (2, 1244510), (4, 622255), (5, 497804), (10, 248902), (20, 124451), (97, 25660), (194, 12830), (388, 6415), (485, 5132), (970, 2566), (1283, 1940)]