81894145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{16561}}^1$

素因数の和:16632

約数の個数: 16

約数和(自身を含む): 104936832

約数和(自身を除く): 23042687

約数列:

[1, 5, 23, 43, 115, 215, 989, 4945, 16561, 82805, 380903, 712123, 1904515, 3560615, 16378829, 81894145]

約数ペア:

[(1, 81894145), (5, 16378829), (23, 3560615), (43, 1904515), (115, 712123), (215, 380903), (989, 82805), (4945, 16561)]