642712

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 1440000

約数和(自身を除く): 797288

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 499, 644, 998, 1288, 1996, 3493, 3992, 6986, 11477, 13972, 22954, 27944, 45908, 80339, 91816, 160678, 321356, 642712]

約数ペア:

[(1, 642712), (2, 321356), (4, 160678), (7, 91816), (8, 80339), (14, 45908), (23, 27944), (28, 22954), (46, 13972), (56, 11477), (92, 6986), (161, 3992), (184, 3493), (322, 1996), (499, 1288), (644, 998)]