20644448

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 24062368

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 223, 263, 352, 446, 526, 892, 1052, 1784, 2104, 2453, 2893, 3568, 4208, 4906, 5786, 7136, 8416, 9812, 11572, 19624, 23144, 39248, 46288, 58649, 78496, 92576, 117298, 234596, 469192, 645139, 938384, 1290278, 1876768, 2580556, 5161112, 10322224, 20644448]

約数ペア:

[(1, 20644448), (2, 10322224), (4, 5161112), (8, 2580556), (11, 1876768), (16, 1290278), (22, 938384), (32, 645139), (44, 469192), (88, 234596), (176, 117298), (223, 92576), (263, 78496), (352, 58649), (446, 46288), (526, 39248), (892, 23144), (1052, 19624), (1784, 11572), (2104, 9812), (2453, 8416), (2893, 7136), (3568, 5786), (4208, 4906)]