78801200

素因数分解:

$2^4\times 5^2\times {\mathrm{197003}}^1$

素因数の和:197021

約数の個数: 30

約数和(自身を含む): 189320844

約数和(自身を除く): 110519644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 197003, 394006, 788012, 985015, 1576024, 1970030, 3152048, 3940060, 4925075, 7880120, 9850150, 15760240, 19700300, 39400600, 78801200]

約数ペア:

[(1, 78801200), (2, 39400600), (4, 19700300), (5, 15760240), (8, 9850150), (10, 7880120), (16, 4925075), (20, 3940060), (25, 3152048), (40, 1970030), (50, 1576024), (80, 985015), (100, 788012), (200, 394006), (400, 197003)]