2149440080

素因数分解:

$2^4\times 5^1\times {\mathrm{26868001}}^1$

素因数の和:26868014

約数の個数: 20

約数和(自身を含む): 4997448372

約数和(自身を除く): 2848008292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26868001, 53736002, 107472004, 134340005, 214944008, 268680010, 429888016, 537360020, 1074720040, 2149440080]

約数ペア:

[(1, 2149440080), (2, 1074720040), (4, 537360020), (5, 429888016), (8, 268680010), (10, 214944008), (16, 134340005), (20, 107472004), (40, 53736002), (80, 26868001)]