40195880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5101}}^1$

素因数の和:5309

約数の個数: 32

約数和(自身を含む): 90917640

約数和(自身を除く): 50721760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5101, 7880, 10202, 20404, 25505, 40808, 51010, 102020, 204040, 1004897, 2009794, 4019588, 5024485, 8039176, 10048970, 20097940, 40195880]

約数ペア:

[(1, 40195880), (2, 20097940), (4, 10048970), (5, 8039176), (8, 5024485), (10, 4019588), (20, 2009794), (40, 1004897), (197, 204040), (394, 102020), (788, 51010), (985, 40808), (1576, 25505), (1970, 20404), (3940, 10202), (5101, 7880)]