1990384

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 40

約数和(自身を含む): 4321152

約数和(自身を除く): 2330768

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 263, 344, 473, 526, 688, 946, 1052, 1892, 2104, 2893, 3784, 4208, 5786, 7568, 11309, 11572, 22618, 23144, 45236, 46288, 90472, 124399, 180944, 248798, 497596, 995192, 1990384]

約数ペア:

[(1, 1990384), (2, 995192), (4, 497596), (8, 248798), (11, 180944), (16, 124399), (22, 90472), (43, 46288), (44, 45236), (86, 23144), (88, 22618), (172, 11572), (176, 11309), (263, 7568), (344, 5786), (473, 4208), (526, 3784), (688, 2893), (946, 2104), (1052, 1892)]