66850225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3881}}^1$

素因数の和:3957

約数の個数: 24

約数和(自身を含む): 90978552

約数和(自身を除く): 24128327

約数列:

[1, 5, 13, 25, 53, 65, 265, 325, 689, 1325, 3445, 3881, 17225, 19405, 50453, 97025, 205693, 252265, 1028465, 1261325, 2674009, 5142325, 13370045, 66850225]

約数ペア:

[(1, 66850225), (5, 13370045), (13, 5142325), (25, 2674009), (53, 1261325), (65, 1028465), (265, 252265), (325, 205693), (689, 97025), (1325, 50453), (3445, 19405), (3881, 17225)]