19400156944

素因数分解:

$2^4\times 7^1\times {\mathrm{257}}^1\times {\mathrm{673991}}^1$

素因数の和:674263

約数の個数: 40

約数和(自身を含む): 43124704128

約数和(自身を除く): 23724547184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 257, 514, 1028, 1799, 2056, 3598, 4112, 7196, 14392, 28784, 673991, 1347982, 2695964, 4717937, 5391928, 9435874, 10783856, 18871748, 37743496, 75486992, 173215687, 346431374, 692862748, 1212509809, 1385725496, 2425019618, 2771450992, 4850039236, 9700078472, 19400156944]

約数ペア:

[(1, 19400156944), (2, 9700078472), (4, 4850039236), (7, 2771450992), (8, 2425019618), (14, 1385725496), (16, 1212509809), (28, 692862748), (56, 346431374), (112, 173215687), (257, 75486992), (514, 37743496), (1028, 18871748), (1799, 10783856), (2056, 9435874), (3598, 5391928), (4112, 4717937), (7196, 2695964), (14392, 1347982), (28784, 673991)]