13420175

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{1487}}^1$

素因数の和:1535

約数の個数: 18

約数和(自身を含む): 17574768

約数和(自身を除く): 4154593

約数列:

[1, 5, 19, 25, 95, 361, 475, 1487, 1805, 7435, 9025, 28253, 37175, 141265, 536807, 706325, 2684035, 13420175]

約数ペア:

[(1, 13420175), (5, 2684035), (19, 706325), (25, 536807), (95, 141265), (361, 37175), (475, 28253), (1487, 9025), (1805, 7435)]