81851704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 173859840

約数和(自身を除く): 92008136

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 97, 172, 194, 223, 344, 388, 446, 473, 776, 892, 946, 1067, 1784, 1892, 2134, 2453, 3784, 4171, 4268, 4906, 8342, 8536, 9589, 9812, 16684, 19178, 19624, 21631, 33368, 38356, 43262, 45881, 76712, 86524, 91762, 105479, 173048, 183524, 210958, 237941, 367048, 421916, 475882, 843832, 930133, 951764, 1860266, 1903528, 3720532, 7441064, 10231463, 20462926, 40925852, 81851704]

約数ペア:

[(1, 81851704), (2, 40925852), (4, 20462926), (8, 10231463), (11, 7441064), (22, 3720532), (43, 1903528), (44, 1860266), (86, 951764), (88, 930133), (97, 843832), (172, 475882), (194, 421916), (223, 367048), (344, 237941), (388, 210958), (446, 183524), (473, 173048), (776, 105479), (892, 91762), (946, 86524), (1067, 76712), (1784, 45881), (1892, 43262), (2134, 38356), (2453, 33368), (3784, 21631), (4171, 19624), (4268, 19178), (4906, 16684), (8342, 9812), (8536, 9589)]