155511760

素因数分解:

$2^4\times 5^1\times {\mathrm{1943897}}^1$

素因数の和:1943910

約数の個数: 20

約数和(自身を含む): 361565028

約数和(自身を除く): 206053268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1943897, 3887794, 7775588, 9719485, 15551176, 19438970, 31102352, 38877940, 77755880, 155511760]

約数ペア:

[(1, 155511760), (2, 77755880), (4, 38877940), (5, 31102352), (8, 19438970), (10, 15551176), (16, 9719485), (20, 7775588), (40, 3887794), (80, 1943897)]