640464445

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{907}}^1\times {\mathrm{7433}}^1$

素因数の和:8364

約数の個数: 16

約数和(自身を含む): 810008640

約数和(自身を除く): 169544195

約数列:

[1, 5, 19, 95, 907, 4535, 7433, 17233, 37165, 86165, 141227, 706135, 6741731, 33708655, 128092889, 640464445]

約数ペア:

[(1, 640464445), (5, 128092889), (19, 33708655), (95, 6741731), (907, 706135), (4535, 141227), (7433, 86165), (17233, 37165)]