20263900

素因数分解:

$2^2\times 5^2\times {\mathrm{202639}}^1$

素因数の和:202653

約数の個数: 18

約数和(自身を含む): 43972880

約数和(自身を除く): 23708980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202639, 405278, 810556, 1013195, 2026390, 4052780, 5065975, 10131950, 20263900]

約数ペア:

[(1, 20263900), (2, 10131950), (4, 5065975), (5, 4052780), (10, 2026390), (20, 1013195), (25, 810556), (50, 405278), (100, 202639)]