16520080

素因数分解:

$2^4\times 5^1\times {\mathrm{206501}}^1$

素因数の和:206514

約数の個数: 20

約数和(自身を含む): 38409372

約数和(自身を除く): 21889292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 206501, 413002, 826004, 1032505, 1652008, 2065010, 3304016, 4130020, 8260040, 16520080]

約数ペア:

[(1, 16520080), (2, 8260040), (4, 4130020), (5, 3304016), (8, 2065010), (10, 1652008), (16, 1032505), (20, 826004), (40, 413002), (80, 206501)]