20710004

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 43051008

約数和(自身を除く): 22341004

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 103, 167, 172, 206, 301, 334, 412, 602, 668, 721, 1169, 1204, 1442, 2338, 2884, 4429, 4676, 7181, 8858, 14362, 17201, 17716, 28724, 31003, 34402, 50267, 62006, 68804, 100534, 120407, 124012, 201068, 240814, 481628, 739643, 1479286, 2958572, 5177501, 10355002, 20710004]

約数ペア:

[(1, 20710004), (2, 10355002), (4, 5177501), (7, 2958572), (14, 1479286), (28, 739643), (43, 481628), (86, 240814), (103, 201068), (167, 124012), (172, 120407), (206, 100534), (301, 68804), (334, 62006), (412, 50267), (602, 34402), (668, 31003), (721, 28724), (1169, 17716), (1204, 17201), (1442, 14362), (2338, 8858), (2884, 7181), (4429, 4676)]