20458576

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9199}}^1$

素因数の和:9346

約数の個数: 20

約数和(自身を含む): 39928000

約数和(自身を除く): 19469424

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9199, 18398, 36796, 73592, 147184, 1278661, 2557322, 5114644, 10229288, 20458576]

約数ペア:

[(1, 20458576), (2, 10229288), (4, 5114644), (8, 2557322), (16, 1278661), (139, 147184), (278, 73592), (556, 36796), (1112, 18398), (2224, 9199)]