20317792

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 44008272

約数和(自身を除く): 23690480

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 197, 293, 352, 394, 586, 788, 1172, 1576, 2167, 2344, 3152, 3223, 4334, 4688, 6304, 6446, 8668, 9376, 12892, 17336, 25784, 34672, 51568, 57721, 69344, 103136, 115442, 230884, 461768, 634931, 923536, 1269862, 1847072, 2539724, 5079448, 10158896, 20317792]

約数ペア:

[(1, 20317792), (2, 10158896), (4, 5079448), (8, 2539724), (11, 1847072), (16, 1269862), (22, 923536), (32, 634931), (44, 461768), (88, 230884), (176, 115442), (197, 103136), (293, 69344), (352, 57721), (394, 51568), (586, 34672), (788, 25784), (1172, 17336), (1576, 12892), (2167, 9376), (2344, 8668), (3152, 6446), (3223, 6304), (4334, 4688)]