20140540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{547}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 48609792

約数和(自身を除く): 28469252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 547, 1052, 1094, 1315, 1841, 2188, 2630, 2735, 3682, 3829, 5260, 5470, 7364, 7658, 9205, 10940, 15316, 18410, 19145, 36820, 38290, 76580, 143861, 287722, 575444, 719305, 1007027, 1438610, 2014054, 2877220, 4028108, 5035135, 10070270, 20140540]

約数ペア:

[(1, 20140540), (2, 10070270), (4, 5035135), (5, 4028108), (7, 2877220), (10, 2014054), (14, 1438610), (20, 1007027), (28, 719305), (35, 575444), (70, 287722), (140, 143861), (263, 76580), (526, 38290), (547, 36820), (1052, 19145), (1094, 18410), (1315, 15316), (1841, 10940), (2188, 9205), (2630, 7658), (2735, 7364), (3682, 5470), (3829, 5260)]