9991760

素因数分解:

$2^4\times 5^1\times {\mathrm{124897}}^1$

素因数の和:124910

約数の個数: 20

約数和(自身を含む): 23231028

約数和(自身を除く): 13239268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 124897, 249794, 499588, 624485, 999176, 1248970, 1998352, 2497940, 4995880, 9991760]

約数ペア:

[(1, 9991760), (2, 4995880), (4, 2497940), (5, 1998352), (8, 1248970), (10, 999176), (16, 624485), (20, 499588), (40, 249794), (80, 124897)]