12405520

素因数分解:

$2^4\times 5^1\times {\mathrm{155069}}^1$

素因数の和:155082

約数の個数: 20

約数和(自身を含む): 28843020

約数和(自身を除く): 16437500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 155069, 310138, 620276, 775345, 1240552, 1550690, 2481104, 3101380, 6202760, 12405520]

約数ペア:

[(1, 12405520), (2, 6202760), (4, 3101380), (5, 2481104), (8, 1550690), (10, 1240552), (16, 775345), (20, 620276), (40, 310138), (80, 155069)]