1287356

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 2688000

約数和(自身を除く): 1400644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 1999, 3998, 7996, 13993, 27986, 45977, 55972, 91954, 183908, 321839, 643678, 1287356]

約数ペア:

[(1, 1287356), (2, 643678), (4, 321839), (7, 183908), (14, 91954), (23, 55972), (28, 45977), (46, 27986), (92, 13993), (161, 7996), (322, 3998), (644, 1999)]