261716056

素因数分解:

$2^3\times 7^2\times {\mathrm{667643}}^1$

素因数の和:667663

約数の個数: 24

約数和(自身を含む): 570835620

約数和(自身を除く): 309119564

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 667643, 1335286, 2670572, 4673501, 5341144, 9347002, 18694004, 32714507, 37388008, 65429014, 130858028, 261716056]

約数ペア:

[(1, 261716056), (2, 130858028), (4, 65429014), (7, 37388008), (8, 32714507), (14, 18694004), (28, 9347002), (49, 5341144), (56, 4673501), (98, 2670572), (196, 1335286), (392, 667643)]