665280688

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{299137}}^1$

素因数の和:299284

約数の個数: 20

約数和(自身を含む): 1298258920

約数和(自身を除く): 632978232

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 299137, 598274, 1196548, 2393096, 4786192, 41580043, 83160086, 166320172, 332640344, 665280688]

約数ペア:

[(1, 665280688), (2, 332640344), (4, 166320172), (8, 83160086), (16, 41580043), (139, 4786192), (278, 2393096), (556, 1196548), (1112, 598274), (2224, 299137)]