51209665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 68947200

約数和(自身を除く): 17737535

約数列:

[1, 5, 13, 37, 65, 107, 185, 199, 481, 535, 995, 1391, 2405, 2587, 3959, 6955, 7363, 12935, 19795, 21293, 36815, 51467, 95719, 106465, 257335, 276809, 478595, 787841, 1384045, 3939205, 10241933, 51209665]

約数ペア:

[(1, 51209665), (5, 10241933), (13, 3939205), (37, 1384045), (65, 787841), (107, 478595), (185, 276809), (199, 257335), (481, 106465), (535, 95719), (995, 51467), (1391, 36815), (2405, 21293), (2587, 19795), (3959, 12935), (6955, 7363)]