20207248

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1351

約数の個数: 40

約数和(自身を含む): 41836608

約数和(自身を除く): 21629360

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1277, 1978, 2554, 3956, 5108, 7912, 10216, 15824, 20432, 29371, 54911, 58742, 109822, 117484, 219644, 234968, 439288, 469936, 878576, 1262953, 2525906, 5051812, 10103624, 20207248]

約数ペア:

[(1, 20207248), (2, 10103624), (4, 5051812), (8, 2525906), (16, 1262953), (23, 878576), (43, 469936), (46, 439288), (86, 234968), (92, 219644), (172, 117484), (184, 109822), (344, 58742), (368, 54911), (688, 29371), (989, 20432), (1277, 15824), (1978, 10216), (2554, 7912), (3956, 5108)]