66475775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 87234000

約数和(自身を除く): 20758225

約数列:

[1, 5, 19, 25, 95, 349, 401, 475, 1745, 2005, 6631, 7619, 8725, 10025, 33155, 38095, 139949, 165775, 190475, 699745, 2659031, 3498725, 13295155, 66475775]

約数ペア:

[(1, 66475775), (5, 13295155), (19, 3498725), (25, 2659031), (95, 699745), (349, 190475), (401, 165775), (475, 139949), (1745, 38095), (2005, 33155), (6631, 10025), (7619, 8725)]