2170855

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:510

約数の個数: 16

約数和(自身を含む): 2787840

約数和(自身を除く): 616985

約数列:

[1, 5, 23, 43, 115, 215, 439, 989, 2195, 4945, 10097, 18877, 50485, 94385, 434171, 2170855]

約数ペア:

[(1, 2170855), (5, 434171), (23, 94385), (43, 50485), (115, 18877), (215, 10097), (439, 4945), (989, 2195)]