290090384

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{421643}}^1$

素因数の和:421694

約数の個数: 20

約数和(自身を含む): 575122416

約数和(自身を除く): 285032032

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 421643, 843286, 1686572, 3373144, 6746288, 18130649, 36261298, 72522596, 145045192, 290090384]

約数ペア:

[(1, 290090384), (2, 145045192), (4, 72522596), (8, 36261298), (16, 18130649), (43, 6746288), (86, 3373144), (172, 1686572), (344, 843286), (688, 421643)]