498138940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1915919}}^1$

素因数の和:1915941

約数の個数: 24

約数和(自身を含む): 1126560960

約数和(自身を除く): 628422020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1915919, 3831838, 7663676, 9579595, 19159190, 24906947, 38318380, 49813894, 99627788, 124534735, 249069470, 498138940]

約数ペア:

[(1, 498138940), (2, 249069470), (4, 124534735), (5, 99627788), (10, 49813894), (13, 38318380), (20, 24906947), (26, 19159190), (52, 9579595), (65, 7663676), (130, 3831838), (260, 1915919)]