22405520

素因数分解:

$2^4\times 5^1\times {\mathrm{280069}}^1$

素因数の和:280082

約数の個数: 20

約数和(自身を含む): 52093020

約数和(自身を除く): 29687500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 280069, 560138, 1120276, 1400345, 2240552, 2800690, 4481104, 5601380, 11202760, 22405520]

約数ペア:

[(1, 22405520), (2, 11202760), (4, 5601380), (5, 4481104), (8, 2800690), (10, 2240552), (16, 1400345), (20, 1120276), (40, 560138), (80, 280069)]