980723420

素因数分解:

$2^2\times 5^1\times {\mathrm{49036171}}^1$

素因数の和:49036180

約数の個数: 12

約数和(自身を含む): 2059519224

約数和(自身を除く): 1078795804

約数列:

[1, 2, 4, 5, 10, 20, 49036171, 98072342, 196144684, 245180855, 490361710, 980723420]

約数ペア:

[(1, 980723420), (2, 490361710), (4, 245180855), (5, 196144684), (10, 98072342), (20, 49036171)]