19268500

素因数分解:

$2^2\times 5^3\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:541

約数の個数: 48

約数和(自身を含む): 42653520

約数和(自身を除く): 23385020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 125, 178, 250, 356, 433, 445, 500, 866, 890, 1732, 1780, 2165, 2225, 4330, 4450, 8660, 8900, 10825, 11125, 21650, 22250, 38537, 43300, 44500, 54125, 77074, 108250, 154148, 192685, 216500, 385370, 770740, 963425, 1926850, 3853700, 4817125, 9634250, 19268500]

約数ペア:

[(1, 19268500), (2, 9634250), (4, 4817125), (5, 3853700), (10, 1926850), (20, 963425), (25, 770740), (50, 385370), (89, 216500), (100, 192685), (125, 154148), (178, 108250), (250, 77074), (356, 54125), (433, 44500), (445, 43300), (500, 38537), (866, 22250), (890, 21650), (1732, 11125), (1780, 10825), (2165, 8900), (2225, 8660), (4330, 4450)]