16720195

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{419}}^1$

素因数の和:794

約数の個数: 16

約数和(自身を含む): 21047040

約数和(自身を除く): 4326845

約数列:

[1, 5, 23, 115, 347, 419, 1735, 2095, 7981, 9637, 39905, 48185, 145393, 726965, 3344039, 16720195]

約数ペア:

[(1, 16720195), (5, 3344039), (23, 726965), (115, 145393), (347, 48185), (419, 39905), (1735, 9637), (2095, 7981)]