10989520

素因数分解:

$2^4\times 5^1\times {\mathrm{137369}}^1$

素因数の和:137382

約数の個数: 20

約数和(自身を含む): 25550820

約数和(自身を除く): 14561300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137369, 274738, 549476, 686845, 1098952, 1373690, 2197904, 2747380, 5494760, 10989520]

約数ペア:

[(1, 10989520), (2, 5494760), (4, 2747380), (5, 2197904), (8, 1373690), (10, 1098952), (16, 686845), (20, 549476), (40, 274738), (80, 137369)]