18660320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16661}}^1$

素因数の和:16683

約数の個数: 48

約数和(自身を含む): 50385888

約数和(自身を除く): 31725568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16661, 33322, 66644, 83305, 116627, 133288, 166610, 233254, 266576, 333220, 466508, 533152, 583135, 666440, 933016, 1166270, 1332880, 1866032, 2332540, 2665760, 3732064, 4665080, 9330160, 18660320]

約数ペア:

[(1, 18660320), (2, 9330160), (4, 4665080), (5, 3732064), (7, 2665760), (8, 2332540), (10, 1866032), (14, 1332880), (16, 1166270), (20, 933016), (28, 666440), (32, 583135), (35, 533152), (40, 466508), (56, 333220), (70, 266576), (80, 233254), (112, 166610), (140, 133288), (160, 116627), (224, 83305), (280, 66644), (560, 33322), (1120, 16661)]