2003420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1037

約数の個数: 24

約数和(自身を含む): 4250400

約数和(自身を除く): 2246980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 919, 1090, 1838, 2180, 3676, 4595, 9190, 18380, 100171, 200342, 400684, 500855, 1001710, 2003420]

約数ペア:

[(1, 2003420), (2, 1001710), (4, 500855), (5, 400684), (10, 200342), (20, 100171), (109, 18380), (218, 9190), (436, 4595), (545, 3676), (919, 2180), (1090, 1838)]