87691645

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 106596720

約数和(自身を除く): 18905075

約数列:

[1, 5, 137, 313, 409, 685, 1565, 2045, 42881, 56033, 128017, 214405, 280165, 640085, 17538329, 87691645]

約数ペア:

[(1, 87691645), (5, 17538329), (137, 640085), (313, 280165), (409, 214405), (685, 128017), (1565, 56033), (2045, 42881)]