28163080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64007}}^1$

素因数の和:64029

約数の個数: 32

約数和(自身を含む): 69128640

約数和(自身を除く): 40965560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64007, 128014, 256028, 320035, 512056, 640070, 704077, 1280140, 1408154, 2560280, 2816308, 3520385, 5632616, 7040770, 14081540, 28163080]

約数ペア:

[(1, 28163080), (2, 14081540), (4, 7040770), (5, 5632616), (8, 3520385), (10, 2816308), (11, 2560280), (20, 1408154), (22, 1280140), (40, 704077), (44, 640070), (55, 512056), (88, 320035), (110, 256028), (220, 128014), (440, 64007)]