1380260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9859}}^1$

素因数の和:9875

約数の個数: 24

約数和(自身を含む): 3312960

約数和(自身を除く): 1932700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9859, 19718, 39436, 49295, 69013, 98590, 138026, 197180, 276052, 345065, 690130, 1380260]

約数ペア:

[(1, 1380260), (2, 690130), (4, 345065), (5, 276052), (7, 197180), (10, 138026), (14, 98590), (20, 69013), (28, 49295), (35, 39436), (70, 19718), (140, 9859)]