199571080

素因数分解:

$2^3\times 5^1\times {\mathrm{4989277}}^1$

素因数の和:4989288

約数の個数: 16

約数和(自身を含む): 449035020

約数和(自身を除く): 249463940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4989277, 9978554, 19957108, 24946385, 39914216, 49892770, 99785540, 199571080]

約数ペア:

[(1, 199571080), (2, 99785540), (4, 49892770), (5, 39914216), (8, 24946385), (10, 19957108), (20, 9978554), (40, 4989277)]