720140260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{734837}}^1$

素因数の和:734860

約数の個数: 36

約数和(自身を含む): 1759202172

約数和(自身を除く): 1039061912

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 734837, 1469674, 2939348, 3674185, 5143859, 7348370, 10287718, 14696740, 20575436, 25719295, 36007013, 51438590, 72014026, 102877180, 144028052, 180035065, 360070130, 720140260]

約数ペア:

[(1, 720140260), (2, 360070130), (4, 180035065), (5, 144028052), (7, 102877180), (10, 72014026), (14, 51438590), (20, 36007013), (28, 25719295), (35, 20575436), (49, 14696740), (70, 10287718), (98, 7348370), (140, 5143859), (196, 3674185), (245, 2939348), (490, 1469674), (980, 734837)]