28054180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18217}}^1$

素因数の和:18244

約数の個数: 48

約数和(自身を含む): 73454976

約数和(自身を除く): 45400796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18217, 36434, 72868, 91085, 127519, 182170, 200387, 255038, 364340, 400774, 510076, 637595, 801548, 1001935, 1275190, 1402709, 2003870, 2550380, 2805418, 4007740, 5610836, 7013545, 14027090, 28054180]

約数ペア:

[(1, 28054180), (2, 14027090), (4, 7013545), (5, 5610836), (7, 4007740), (10, 2805418), (11, 2550380), (14, 2003870), (20, 1402709), (22, 1275190), (28, 1001935), (35, 801548), (44, 637595), (55, 510076), (70, 400774), (77, 364340), (110, 255038), (140, 200387), (154, 182170), (220, 127519), (308, 91085), (385, 72868), (770, 36434), (1540, 18217)]