159663520

素因数分解:

$2^5\times 5^1\times {\mathrm{997897}}^1$

素因数の和:997912

約数の個数: 24

約数和(自身を含む): 377205444

約数和(自身を除く): 217541924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 997897, 1995794, 3991588, 4989485, 7983176, 9978970, 15966352, 19957940, 31932704, 39915880, 79831760, 159663520]

約数ペア:

[(1, 159663520), (2, 79831760), (4, 39915880), (5, 31932704), (8, 19957940), (10, 15966352), (16, 9978970), (20, 7983176), (32, 4989485), (40, 3991588), (80, 1995794), (160, 997897)]