199947904

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1123}}^1$

素因数の和:1257

約数の個数: 64

約数和(自身を含む): 433369440

約数和(自身を除く): 233421536

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 107, 128, 208, 214, 416, 428, 832, 856, 1123, 1391, 1664, 1712, 2246, 2782, 3424, 4492, 5564, 6848, 8984, 11128, 13696, 14599, 17968, 22256, 29198, 35936, 44512, 58396, 71872, 89024, 116792, 120161, 143744, 178048, 233584, 240322, 467168, 480644, 934336, 961288, 1562093, 1868672, 1922576, 3124186, 3845152, 6248372, 7690304, 12496744, 15380608, 24993488, 49986976, 99973952, 199947904]

約数ペア:

[(1, 199947904), (2, 99973952), (4, 49986976), (8, 24993488), (13, 15380608), (16, 12496744), (26, 7690304), (32, 6248372), (52, 3845152), (64, 3124186), (104, 1922576), (107, 1868672), (128, 1562093), (208, 961288), (214, 934336), (416, 480644), (428, 467168), (832, 240322), (856, 233584), (1123, 178048), (1391, 143744), (1664, 120161), (1712, 116792), (2246, 89024), (2782, 71872), (3424, 58396), (4492, 44512), (5564, 35936), (6848, 29198), (8984, 22256), (11128, 17968), (13696, 14599)]