28880460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22921}}^1$

素因数の和:22943

約数の個数: 72

約数和(自身を含む): 100123296

約数和(自身を除く): 71242836

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22921, 45842, 68763, 91684, 114605, 137526, 160447, 206289, 229210, 275052, 320894, 343815, 412578, 458420, 481341, 641788, 687630, 802235, 825156, 962682, 1031445, 1375260, 1444023, 1604470, 1925364, 2062890, 2406705, 2888046, 3208940, 4125780, 4813410, 5776092, 7220115, 9626820, 14440230, 28880460]

約数ペア:

[(1, 28880460), (2, 14440230), (3, 9626820), (4, 7220115), (5, 5776092), (6, 4813410), (7, 4125780), (9, 3208940), (10, 2888046), (12, 2406705), (14, 2062890), (15, 1925364), (18, 1604470), (20, 1444023), (21, 1375260), (28, 1031445), (30, 962682), (35, 825156), (36, 802235), (42, 687630), (45, 641788), (60, 481341), (63, 458420), (70, 412578), (84, 343815), (90, 320894), (105, 275052), (126, 229210), (140, 206289), (180, 160447), (210, 137526), (252, 114605), (315, 91684), (420, 68763), (630, 45842), (1260, 22921)]