7326980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3361}}^1$

素因数の和:3479

約数の個数: 24

約数和(自身を含む): 15532440

約数和(自身を除く): 8205460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 3361, 6722, 13444, 16805, 33610, 67220, 366349, 732698, 1465396, 1831745, 3663490, 7326980]

約数ペア:

[(1, 7326980), (2, 3663490), (4, 1831745), (5, 1465396), (10, 732698), (20, 366349), (109, 67220), (218, 33610), (436, 16805), (545, 13444), (1090, 6722), (2180, 3361)]