640398608

素因数分解:

$2^4\times {\mathrm{10903}}^1\times {\mathrm{3671}}^1$

素因数の和:14582

約数の個数: 20

約数和(自身を含む): 1241224128

約数和(自身を除く): 600825520

約数列:

[1, 2, 4, 8, 16, 3671, 7342, 10903, 14684, 21806, 29368, 43612, 58736, 87224, 174448, 40024913, 80049826, 160099652, 320199304, 640398608]

約数ペア:

[(1, 640398608), (2, 320199304), (4, 160099652), (8, 80049826), (16, 40024913), (3671, 174448), (7342, 87224), (10903, 58736), (14684, 43612), (21806, 29368)]