159720260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1140859}}^1$

素因数の和:1140875

約数の個数: 24

約数和(自身を含む): 383328960

約数和(自身を除く): 223608700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1140859, 2281718, 4563436, 5704295, 7986013, 11408590, 15972026, 22817180, 31944052, 39930065, 79860130, 159720260]

約数ペア:

[(1, 159720260), (2, 79860130), (4, 39930065), (5, 31944052), (7, 22817180), (10, 15972026), (14, 11408590), (20, 7986013), (28, 5704295), (35, 4563436), (70, 2281718), (140, 1140859)]