20170655

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4079}}^1$

素因数の和:4150

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 5680225

約数列:

[1, 5, 23, 43, 115, 215, 989, 4079, 4945, 20395, 93817, 175397, 469085, 876985, 4034131, 20170655]

約数ペア:

[(1, 20170655), (5, 4034131), (23, 876985), (43, 469085), (115, 175397), (215, 93817), (989, 20395), (4079, 4945)]