7880080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7577}}^1$

素因数の和:7603

約数の個数: 40

約数和(自身を含む): 19733112

約数和(自身を除く): 11853032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7577, 15154, 30308, 37885, 60616, 75770, 98501, 121232, 151540, 197002, 303080, 394004, 492505, 606160, 788008, 985010, 1576016, 1970020, 3940040, 7880080]

約数ペア:

[(1, 7880080), (2, 3940040), (4, 1970020), (5, 1576016), (8, 985010), (10, 788008), (13, 606160), (16, 492505), (20, 394004), (26, 303080), (40, 197002), (52, 151540), (65, 121232), (80, 98501), (104, 75770), (130, 60616), (208, 37885), (260, 30308), (520, 15154), (1040, 7577)]