20178163772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1380931}}^1$

素因数の和:1381229

約数の個数: 24

約数和(自身を含む): 38163436752

約数和(自身を除く): 17985272980

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 3653, 7306, 14612, 1380931, 2761862, 5523724, 17952103, 35904206, 71808412, 388041611, 776083222, 1552166444, 5044540943, 10089081886, 20178163772]

約数ペア:

[(1, 20178163772), (2, 10089081886), (4, 5044540943), (13, 1552166444), (26, 776083222), (52, 388041611), (281, 71808412), (562, 35904206), (1124, 17952103), (3653, 5523724), (7306, 2761862), (14612, 1380931)]