20120155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{1019}}^1$

素因数の和:1394

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 6318245

約数列:

[1, 5, 11, 55, 359, 1019, 1795, 3949, 5095, 11209, 19745, 56045, 365821, 1829105, 4024031, 20120155]

約数ペア:

[(1, 20120155), (5, 4024031), (11, 1829105), (55, 365821), (359, 56045), (1019, 19745), (1795, 11209), (3949, 5095)]