205580836

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{142369}}^1$

素因数の和:142411

約数の個数: 18

約数和(自身を含む): 379700790

約数和(自身を除く): 174119954

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 142369, 284738, 569476, 2705011, 5410022, 10820044, 51395209, 102790418, 205580836]

約数ペア:

[(1, 205580836), (2, 102790418), (4, 51395209), (19, 10820044), (38, 5410022), (76, 2705011), (361, 569476), (722, 284738), (1444, 142369)]