28155540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1621

約数の個数: 96

約数和(自身を含む): 92252160

約数和(自身を除く): 64096620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 1204, 1290, 1505, 1559, 1806, 2580, 3010, 3118, 3612, 4515, 4677, 6020, 6236, 7795, 9030, 9354, 10913, 15590, 18060, 18708, 21826, 23385, 31180, 32739, 43652, 46770, 54565, 65478, 67037, 93540, 109130, 130956, 134074, 163695, 201111, 218260, 268148, 327390, 335185, 402222, 469259, 654780, 670370, 804444, 938518, 1005555, 1340740, 1407777, 1877036, 2011110, 2346295, 2815554, 4022220, 4692590, 5631108, 7038885, 9385180, 14077770, 28155540]

約数ペア:

[(1, 28155540), (2, 14077770), (3, 9385180), (4, 7038885), (5, 5631108), (6, 4692590), (7, 4022220), (10, 2815554), (12, 2346295), (14, 2011110), (15, 1877036), (20, 1407777), (21, 1340740), (28, 1005555), (30, 938518), (35, 804444), (42, 670370), (43, 654780), (60, 469259), (70, 402222), (84, 335185), (86, 327390), (105, 268148), (129, 218260), (140, 201111), (172, 163695), (210, 134074), (215, 130956), (258, 109130), (301, 93540), (420, 67037), (430, 65478), (516, 54565), (602, 46770), (645, 43652), (860, 32739), (903, 31180), (1204, 23385), (1290, 21826), (1505, 18708), (1559, 18060), (1806, 15590), (2580, 10913), (3010, 9354), (3118, 9030), (3612, 7795), (4515, 6236), (4677, 6020)]