20085968

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^2\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 60

約数和(自身を含む): 46059552

約数和(自身を除く): 25973584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 131, 148, 259, 262, 296, 518, 524, 592, 917, 1036, 1048, 1369, 1834, 2072, 2096, 2738, 3668, 4144, 4847, 5476, 7336, 9583, 9694, 10952, 14672, 19166, 19388, 21904, 33929, 38332, 38776, 67858, 76664, 77552, 135716, 153328, 179339, 271432, 358678, 542864, 717356, 1255373, 1434712, 2510746, 2869424, 5021492, 10042984, 20085968]

約数ペア:

[(1, 20085968), (2, 10042984), (4, 5021492), (7, 2869424), (8, 2510746), (14, 1434712), (16, 1255373), (28, 717356), (37, 542864), (56, 358678), (74, 271432), (112, 179339), (131, 153328), (148, 135716), (259, 77552), (262, 76664), (296, 67858), (518, 38776), (524, 38332), (592, 33929), (917, 21904), (1036, 19388), (1048, 19166), (1369, 14672), (1834, 10952), (2072, 9694), (2096, 9583), (2738, 7336), (3668, 5476), (4144, 4847)]