628788220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{305237}}^1$

素因数の和:305349

約数の個数: 24

約数和(自身を含む): 1333279584

約数和(自身を除く): 704491364

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 305237, 610474, 1220948, 1526185, 3052370, 6104740, 31439411, 62878822, 125757644, 157197055, 314394110, 628788220]

約数ペア:

[(1, 628788220), (2, 314394110), (4, 157197055), (5, 125757644), (10, 62878822), (20, 31439411), (103, 6104740), (206, 3052370), (412, 1526185), (515, 1220948), (1030, 610474), (2060, 305237)]