168680080

素因数分解:

$2^4\times 5^1\times {\mathrm{2108501}}^1$

素因数の和:2108514

約数の個数: 20

約数和(自身を含む): 392181372

約数和(自身を除く): 223501292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2108501, 4217002, 8434004, 10542505, 16868008, 21085010, 33736016, 42170020, 84340040, 168680080]

約数ペア:

[(1, 168680080), (2, 84340040), (4, 42170020), (5, 33736016), (8, 21085010), (10, 16868008), (16, 10542505), (20, 8434004), (40, 4217002), (80, 2108501)]