81964735

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 105524496

約数和(自身を除く): 23559761

約数列:

[1, 5, 17, 85, 131, 289, 433, 655, 1445, 2165, 2227, 7361, 11135, 36805, 37859, 56723, 125137, 189295, 283615, 625685, 964291, 4821455, 16392947, 81964735]

約数ペア:

[(1, 81964735), (5, 16392947), (17, 4821455), (85, 964291), (131, 625685), (289, 283615), (433, 189295), (655, 125137), (1445, 56723), (2165, 37859), (2227, 36805), (7361, 11135)]