80340080

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4001}}^1$

素因数の和:4265

約数の個数: 40

約数和(自身を含む): 187581744

約数和(自身を除く): 107241664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4001, 4016, 5020, 8002, 10040, 16004, 20005, 20080, 32008, 40010, 64016, 80020, 160040, 320080, 1004251, 2008502, 4017004, 5021255, 8034008, 10042510, 16068016, 20085020, 40170040, 80340080]

約数ペア:

[(1, 80340080), (2, 40170040), (4, 20085020), (5, 16068016), (8, 10042510), (10, 8034008), (16, 5021255), (20, 4017004), (40, 2008502), (80, 1004251), (251, 320080), (502, 160040), (1004, 80020), (1255, 64016), (2008, 40010), (2510, 32008), (4001, 20080), (4016, 20005), (5020, 16004), (8002, 10040)]