19980055

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 24688800

約数和(自身を除く): 4708745

約数列:

[1, 5, 59, 89, 295, 445, 761, 3805, 5251, 26255, 44899, 67729, 224495, 338645, 3996011, 19980055]

約数ペア:

[(1, 19980055), (5, 3996011), (59, 338645), (89, 224495), (295, 67729), (445, 44899), (761, 26255), (3805, 5251)]