66188225

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{9161}}^1$

素因数の和:9205

約数の個数: 18

約数和(自身を含む): 87194754

約数和(自身を除く): 21006529

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 9161, 45805, 155737, 229025, 778685, 2647529, 3893425, 13237645, 66188225]

約数ペア:

[(1, 66188225), (5, 13237645), (17, 3893425), (25, 2647529), (85, 778685), (289, 229025), (425, 155737), (1445, 45805), (7225, 9161)]