7986972080

素因数分解:

$2^4\times 5^1\times {\mathrm{99837151}}^1$

素因数の和:99837164

約数の個数: 20

約数和(自身を含む): 18569710272

約数和(自身を除く): 10582738192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 99837151, 199674302, 399348604, 499185755, 798697208, 998371510, 1597394416, 1996743020, 3993486040, 7986972080]

約数ペア:

[(1, 7986972080), (2, 3993486040), (4, 1996743020), (5, 1597394416), (8, 998371510), (10, 798697208), (16, 499185755), (20, 399348604), (40, 199674302), (80, 99837151)]