20855450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5417}}^1$

素因数の和:5447

約数の個数: 48

約数和(自身を含む): 48371904

約数和(自身を除く): 27516454

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 5417, 10834, 27085, 37919, 54170, 59587, 75838, 119174, 135425, 189595, 270850, 297935, 379190, 417109, 595870, 834218, 947975, 1489675, 1895950, 2085545, 2979350, 4171090, 10427725, 20855450]

約数ペア:

[(1, 20855450), (2, 10427725), (5, 4171090), (7, 2979350), (10, 2085545), (11, 1895950), (14, 1489675), (22, 947975), (25, 834218), (35, 595870), (50, 417109), (55, 379190), (70, 297935), (77, 270850), (110, 189595), (154, 135425), (175, 119174), (275, 75838), (350, 59587), (385, 54170), (550, 37919), (770, 27085), (1925, 10834), (3850, 5417)]