64414960

素因数分解:

$2^4\times 5^1\times {\mathrm{805187}}^1$

素因数の和:805200

約数の個数: 20

約数和(自身を含む): 149764968

約数和(自身を除く): 85350008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 805187, 1610374, 3220748, 4025935, 6441496, 8051870, 12882992, 16103740, 32207480, 64414960]

約数ペア:

[(1, 64414960), (2, 32207480), (4, 16103740), (5, 12882992), (8, 8051870), (10, 6441496), (16, 4025935), (20, 3220748), (40, 1610374), (80, 805187)]