260025412

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{180073}}^1$

素因数の和:180115

約数の個数: 18

約数和(自身を含む): 480257358

約数和(自身を除く): 220231946

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 180073, 360146, 720292, 3421387, 6842774, 13685548, 65006353, 130012706, 260025412]

約数ペア:

[(1, 260025412), (2, 130012706), (4, 65006353), (19, 13685548), (38, 6842774), (76, 3421387), (361, 720292), (722, 360146), (1444, 180073)]