19369520

素因数分解:

$2^4\times 5^1\times {\mathrm{242119}}^1$

素因数の和:242132

約数の個数: 20

約数和(自身を含む): 45034320

約数和(自身を除く): 25664800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242119, 484238, 968476, 1210595, 1936952, 2421190, 3873904, 4842380, 9684760, 19369520]

約数ペア:

[(1, 19369520), (2, 9684760), (4, 4842380), (5, 3873904), (8, 2421190), (10, 1936952), (16, 1210595), (20, 968476), (40, 484238), (80, 242119)]