28853390

素因数分解:

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

素因数の和:476

約数の個数: 32

約数和(自身を含む): 53127360

約数和(自身を除く): 24273970

約数列:

[1, 2, 5, 10, 103, 109, 206, 218, 257, 514, 515, 545, 1030, 1090, 1285, 2570, 11227, 22454, 26471, 28013, 52942, 56026, 56135, 112270, 132355, 140065, 264710, 280130, 2885339, 5770678, 14426695, 28853390]

約数ペア:

[(1, 28853390), (2, 14426695), (5, 5770678), (10, 2885339), (103, 280130), (109, 264710), (206, 140065), (218, 132355), (257, 112270), (514, 56135), (515, 56026), (545, 52942), (1030, 28013), (1090, 26471), (1285, 22454), (2570, 11227)]