20145981404

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{281}}^1\times {\mathrm{245527}}^1$

素因数の和:245885

約数の個数: 24

約数和(自身を含む): 35865748128

約数和(自身を除く): 15719766724

約数列:

[1, 2, 4, 73, 146, 281, 292, 562, 1124, 20513, 41026, 82052, 245527, 491054, 982108, 17923471, 35846942, 68993087, 71693884, 137986174, 275972348, 5036495351, 10072990702, 20145981404]

約数ペア:

[(1, 20145981404), (2, 10072990702), (4, 5036495351), (73, 275972348), (146, 137986174), (281, 71693884), (292, 68993087), (562, 35846942), (1124, 17923471), (20513, 982108), (41026, 491054), (82052, 245527)]