388581728

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 776160000

約数和(自身を除く): 387578272

約数列:

[1, 2, 4, 8, 16, 32, 139, 199, 278, 398, 439, 556, 796, 878, 1112, 1592, 1756, 2224, 3184, 3512, 4448, 6368, 7024, 14048, 27661, 55322, 61021, 87361, 110644, 122042, 174722, 221288, 244084, 349444, 442576, 488168, 698888, 885152, 976336, 1397776, 1952672, 2795552, 12143179, 24286358, 48572716, 97145432, 194290864, 388581728]

約数ペア:

[(1, 388581728), (2, 194290864), (4, 97145432), (8, 48572716), (16, 24286358), (32, 12143179), (139, 2795552), (199, 1952672), (278, 1397776), (398, 976336), (439, 885152), (556, 698888), (796, 488168), (878, 442576), (1112, 349444), (1592, 244084), (1756, 221288), (2224, 174722), (3184, 122042), (3512, 110644), (4448, 87361), (6368, 61021), (7024, 55322), (14048, 27661)]