640980599

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{24971}}^1$

素因数の和:25190

約数の個数: 16

約数和(自身を含む): 775130880

約数和(自身を除く): 134150281

約数列:

[1, 7, 19, 133, 193, 1351, 3667, 24971, 25669, 174797, 474449, 3321143, 4819403, 33735821, 91568657, 640980599]

約数ペア:

[(1, 640980599), (7, 91568657), (19, 33735821), (133, 4819403), (193, 3321143), (1351, 474449), (3667, 174797), (24971, 25669)]