5178940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19919}}^1$

素因数の和:19941

約数の個数: 24

約数和(自身を含む): 11712960

約数和(自身を除く): 6534020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 19919, 39838, 79676, 99595, 199190, 258947, 398380, 517894, 1035788, 1294735, 2589470, 5178940]

約数ペア:

[(1, 5178940), (2, 2589470), (4, 1294735), (5, 1035788), (10, 517894), (13, 398380), (20, 258947), (26, 199190), (52, 99595), (65, 79676), (130, 39838), (260, 19919)]