8651360

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 20638800

約数和(自身を除く): 11987440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 389, 556, 695, 778, 1112, 1390, 1556, 1945, 2224, 2780, 3112, 3890, 4448, 5560, 6224, 7780, 11120, 12448, 15560, 22240, 31120, 54071, 62240, 108142, 216284, 270355, 432568, 540710, 865136, 1081420, 1730272, 2162840, 4325680, 8651360]

約数ペア:

[(1, 8651360), (2, 4325680), (4, 2162840), (5, 1730272), (8, 1081420), (10, 865136), (16, 540710), (20, 432568), (32, 270355), (40, 216284), (80, 108142), (139, 62240), (160, 54071), (278, 31120), (389, 22240), (556, 15560), (695, 12448), (778, 11120), (1112, 7780), (1390, 6224), (1556, 5560), (1945, 4448), (2224, 3890), (2780, 3112)]