19930160

素因数分解:

$2^4\times 5^1\times {\mathrm{249127}}^1$

素因数の和:249140

約数の個数: 20

約数和(自身を含む): 46337808

約数和(自身を除く): 26407648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 249127, 498254, 996508, 1245635, 1993016, 2491270, 3986032, 4982540, 9965080, 19930160]

約数ペア:

[(1, 19930160), (2, 9965080), (4, 4982540), (5, 3986032), (8, 2491270), (10, 1993016), (16, 1245635), (20, 996508), (40, 498254), (80, 249127)]