199090969

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 265118400

約数和(自身を除く): 66027431

約数列:

[1, 7, 11, 37, 49, 67, 77, 149, 259, 407, 469, 539, 737, 1043, 1639, 1813, 2479, 2849, 3283, 5159, 5513, 7301, 9983, 11473, 17353, 19943, 27269, 36113, 38591, 60643, 69881, 80311, 109813, 121471, 190883, 270137, 369371, 424501, 489167, 768691, 1336181, 2585597, 2971507, 4063081, 5380837, 18099179, 28441567, 199090969]

約数ペア:

[(1, 199090969), (7, 28441567), (11, 18099179), (37, 5380837), (49, 4063081), (67, 2971507), (77, 2585597), (149, 1336181), (259, 768691), (407, 489167), (469, 424501), (539, 369371), (737, 270137), (1043, 190883), (1639, 121471), (1813, 109813), (2479, 80311), (2849, 69881), (3283, 60643), (5159, 38591), (5513, 36113), (7301, 27269), (9983, 19943), (11473, 17353)]