1281326255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{17477}}^1$

素因数の和:17567

約数の個数: 32

約数和(自身を含む): 1771849728

約数和(自身を除く): 490523473

約数列:

[1, 5, 11, 31, 43, 55, 155, 215, 341, 473, 1333, 1705, 2365, 6665, 14663, 17477, 73315, 87385, 192247, 541787, 751511, 961235, 2708935, 3757555, 5959657, 8266621, 23296841, 29798285, 41333105, 116484205, 256265251, 1281326255]

約数ペア:

[(1, 1281326255), (5, 256265251), (11, 116484205), (31, 41333105), (43, 29798285), (55, 23296841), (155, 8266621), (215, 5959657), (341, 3757555), (473, 2708935), (1333, 961235), (1705, 751511), (2365, 541787), (6665, 192247), (14663, 87385), (17477, 73315)]