123752020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{3361}}^1$

素因数の和:3640

約数の個数: 48

約数和(自身を含む): 298222848

約数和(自身を除く): 174470828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 1052, 1315, 1841, 2630, 3361, 3682, 5260, 6722, 7364, 9205, 13444, 16805, 18410, 23527, 33610, 36820, 47054, 67220, 94108, 117635, 235270, 470540, 883943, 1767886, 3535772, 4419715, 6187601, 8839430, 12375202, 17678860, 24750404, 30938005, 61876010, 123752020]

約数ペア:

[(1, 123752020), (2, 61876010), (4, 30938005), (5, 24750404), (7, 17678860), (10, 12375202), (14, 8839430), (20, 6187601), (28, 4419715), (35, 3535772), (70, 1767886), (140, 883943), (263, 470540), (526, 235270), (1052, 117635), (1315, 94108), (1841, 67220), (2630, 47054), (3361, 36820), (3682, 33610), (5260, 23527), (6722, 18410), (7364, 16805), (9205, 13444)]