278536280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{633037}}^1$

素因数の和:633059

約数の個数: 32

約数和(自身を含む): 683681040

約数和(自身を除く): 405144760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 633037, 1266074, 2532148, 3165185, 5064296, 6330370, 6963407, 12660740, 13926814, 25321480, 27853628, 34817035, 55707256, 69634070, 139268140, 278536280]

約数ペア:

[(1, 278536280), (2, 139268140), (4, 69634070), (5, 55707256), (8, 34817035), (10, 27853628), (11, 25321480), (20, 13926814), (22, 12660740), (40, 6963407), (44, 6330370), (55, 5064296), (88, 3165185), (110, 2532148), (220, 1266074), (440, 633037)]