90288475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1451}}^1$

素因数の和:1611

約数の個数: 24

約数和(自身を含む): 118831680

約数和(自身を除く): 28543205

約数列:

[1, 5, 19, 25, 95, 131, 475, 655, 1451, 2489, 3275, 7255, 12445, 27569, 36275, 62225, 137845, 190081, 689225, 950405, 3611539, 4752025, 18057695, 90288475]

約数ペア:

[(1, 90288475), (5, 18057695), (19, 4752025), (25, 3611539), (95, 950405), (131, 689225), (475, 190081), (655, 137845), (1451, 62225), (2489, 36275), (3275, 27569), (7255, 12445)]