20676656

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1330

約数の個数: 80

約数和(自身を含む): 53829888

約数和(自身を除く): 33153232

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1291, 1456, 2002, 2288, 2582, 4004, 5164, 8008, 9037, 10328, 14201, 16016, 16783, 18074, 20656, 28402, 33566, 36148, 56804, 67132, 72296, 99407, 113608, 117481, 134264, 144592, 184613, 198814, 227216, 234962, 268528, 369226, 397628, 469924, 738452, 795256, 939848, 1292291, 1476904, 1590512, 1879696, 2584582, 2953808, 5169164, 10338328, 20676656]

約数ペア:

[(1, 20676656), (2, 10338328), (4, 5169164), (7, 2953808), (8, 2584582), (11, 1879696), (13, 1590512), (14, 1476904), (16, 1292291), (22, 939848), (26, 795256), (28, 738452), (44, 469924), (52, 397628), (56, 369226), (77, 268528), (88, 234962), (91, 227216), (104, 198814), (112, 184613), (143, 144592), (154, 134264), (176, 117481), (182, 113608), (208, 99407), (286, 72296), (308, 67132), (364, 56804), (572, 36148), (616, 33566), (728, 28402), (1001, 20656), (1144, 18074), (1232, 16783), (1291, 16016), (1456, 14201), (2002, 10328), (2288, 9037), (2582, 8008), (4004, 5164)]