57706780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 123963840

約数和(自身を除く): 66257060

約数列:

[1, 2, 4, 5, 10, 20, 103, 109, 206, 218, 257, 412, 436, 514, 515, 545, 1028, 1030, 1090, 1285, 2060, 2180, 2570, 5140, 11227, 22454, 26471, 28013, 44908, 52942, 56026, 56135, 105884, 112052, 112270, 132355, 140065, 224540, 264710, 280130, 529420, 560260, 2885339, 5770678, 11541356, 14426695, 28853390, 57706780]

約数ペア:

[(1, 57706780), (2, 28853390), (4, 14426695), (5, 11541356), (10, 5770678), (20, 2885339), (103, 560260), (109, 529420), (206, 280130), (218, 264710), (257, 224540), (412, 140065), (436, 132355), (514, 112270), (515, 112052), (545, 105884), (1028, 56135), (1030, 56026), (1090, 52942), (1285, 44908), (2060, 28013), (2180, 26471), (2570, 22454), (5140, 11227)]