51280580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197233}}^1$

素因数の和:197255

約数の個数: 24

約数和(自身を含む): 115973592

約数和(自身を除く): 64693012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197233, 394466, 788932, 986165, 1972330, 2564029, 3944660, 5128058, 10256116, 12820145, 25640290, 51280580]

約数ペア:

[(1, 51280580), (2, 25640290), (4, 12820145), (5, 10256116), (10, 5128058), (13, 3944660), (20, 2564029), (26, 1972330), (52, 986165), (65, 788932), (130, 394466), (260, 197233)]