64820945

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{63863}}^1$

素因数の和:63904

約数の個数: 16

約数和(自身を含む): 91964160

約数和(自身を除く): 27143215

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 63863, 319315, 447041, 1852027, 2235205, 9260135, 12964189, 64820945]

約数ペア:

[(1, 64820945), (5, 12964189), (7, 9260135), (29, 2235205), (35, 1852027), (145, 447041), (203, 319315), (1015, 63863)]