639194612

素因数分解:

$2^2\times 7^2\times {\mathrm{3261197}}^1$

素因数の和:3261215

約数の個数: 18

約数和(自身を含む): 1301218002

約数和(自身を除く): 662023390

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 3261197, 6522394, 13044788, 22828379, 45656758, 91313516, 159798653, 319597306, 639194612]

約数ペア:

[(1, 639194612), (2, 319597306), (4, 159798653), (7, 91313516), (14, 45656758), (28, 22828379), (49, 13044788), (98, 6522394), (196, 3261197)]