17989520

素因数分解:

$2^4\times 5^1\times {\mathrm{224869}}^1$

素因数の和:224882

約数の個数: 20

約数和(自身を含む): 41825820

約数和(自身を除く): 23836300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 224869, 449738, 899476, 1124345, 1798952, 2248690, 3597904, 4497380, 8994760, 17989520]

約数ペア:

[(1, 17989520), (2, 8994760), (4, 4497380), (5, 3597904), (8, 2248690), (10, 1798952), (16, 1124345), (20, 899476), (40, 449738), (80, 224869)]