13438225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{1489}}^1$

素因数の和:1537

約数の個数: 18

約数和(自身を含む): 17598390

約数和(自身を除く): 4160165

約数列:

[1, 5, 19, 25, 95, 361, 475, 1489, 1805, 7445, 9025, 28291, 37225, 141455, 537529, 707275, 2687645, 13438225]

約数ペア:

[(1, 13438225), (5, 2687645), (19, 707275), (25, 537529), (95, 141455), (361, 37225), (475, 28291), (1489, 9025), (1805, 7445)]