51817780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12763}}^1$

素因数の和:12808

約数の個数: 48

約数和(自身を含む): 128661120

約数和(自身を除く): 76843340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 12763, 25526, 51052, 63815, 89341, 127630, 178682, 255260, 357364, 370127, 446705, 740254, 893410, 1480508, 1786820, 1850635, 2590889, 3701270, 5181778, 7402540, 10363556, 12954445, 25908890, 51817780]

約数ペア:

[(1, 51817780), (2, 25908890), (4, 12954445), (5, 10363556), (7, 7402540), (10, 5181778), (14, 3701270), (20, 2590889), (28, 1850635), (29, 1786820), (35, 1480508), (58, 893410), (70, 740254), (116, 446705), (140, 370127), (145, 357364), (203, 255260), (290, 178682), (406, 127630), (580, 89341), (812, 63815), (1015, 51052), (2030, 25526), (4060, 12763)]