1398340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{503}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 2963520

約数和(自身を除く): 1565180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 503, 556, 695, 1006, 1390, 2012, 2515, 2780, 5030, 10060, 69917, 139834, 279668, 349585, 699170, 1398340]

約数ペア:

[(1, 1398340), (2, 699170), (4, 349585), (5, 279668), (10, 139834), (20, 69917), (139, 10060), (278, 5030), (503, 2780), (556, 2515), (695, 2012), (1006, 1390)]