18545420

素因数分解:

$2^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1009}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 39026400

約数和(自身を除く): 20480980

約数列:

[1, 2, 4, 5, 10, 20, 919, 1009, 1838, 2018, 3676, 4036, 4595, 5045, 9190, 10090, 18380, 20180, 927271, 1854542, 3709084, 4636355, 9272710, 18545420]

約数ペア:

[(1, 18545420), (2, 9272710), (4, 4636355), (5, 3709084), (10, 1854542), (20, 927271), (919, 20180), (1009, 18380), (1838, 10090), (2018, 9190), (3676, 5045), (4036, 4595)]