28657264

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1811}}^1$

素因数の和:1885

約数の個数: 40

約数和(自身を含む): 59317632

約数和(自身を除く): 30660368

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1811, 1978, 3622, 3956, 7244, 7912, 14488, 15824, 28976, 41653, 77873, 83306, 155746, 166612, 311492, 333224, 622984, 666448, 1245968, 1791079, 3582158, 7164316, 14328632, 28657264]

約数ペア:

[(1, 28657264), (2, 14328632), (4, 7164316), (8, 3582158), (16, 1791079), (23, 1245968), (43, 666448), (46, 622984), (86, 333224), (92, 311492), (172, 166612), (184, 155746), (344, 83306), (368, 77873), (688, 41653), (989, 28976), (1811, 15824), (1978, 14488), (3622, 7912), (3956, 7244)]