15615760

素因数分解:

$2^4\times 5^1\times {\mathrm{195197}}^1$

素因数の和:195210

約数の個数: 20

約数和(自身を含む): 36306828

約数和(自身を除く): 20691068

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195197, 390394, 780788, 975985, 1561576, 1951970, 3123152, 3903940, 7807880, 15615760]

約数ペア:

[(1, 15615760), (2, 7807880), (4, 3903940), (5, 3123152), (8, 1951970), (10, 1561576), (16, 975985), (20, 780788), (40, 390394), (80, 195197)]