20297168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{373}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 41738400

約数和(自身を除く): 21441232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 179, 304, 358, 373, 716, 746, 1432, 1492, 2864, 2984, 3401, 5968, 6802, 7087, 13604, 14174, 27208, 28348, 54416, 56696, 66767, 113392, 133534, 267068, 534136, 1068272, 1268573, 2537146, 5074292, 10148584, 20297168]

約数ペア:

[(1, 20297168), (2, 10148584), (4, 5074292), (8, 2537146), (16, 1268573), (19, 1068272), (38, 534136), (76, 267068), (152, 133534), (179, 113392), (304, 66767), (358, 56696), (373, 54416), (716, 28348), (746, 27208), (1432, 14174), (1492, 13604), (2864, 7087), (2984, 6802), (3401, 5968)]