20199451168

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{89753}}^1$

素因数の和:90317

約数の個数: 48

約数和(自身を含む): 42906361176

約数和(自身を除く): 22706910008

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 541, 1082, 2164, 4328, 7033, 8656, 14066, 17312, 28132, 56264, 89753, 112528, 179506, 225056, 359012, 718024, 1166789, 1436048, 2333578, 2872096, 4667156, 9334312, 18668624, 37337248, 48556373, 97112746, 194225492, 388450984, 631232849, 776901968, 1262465698, 1553803936, 2524931396, 5049862792, 10099725584, 20199451168]

約数ペア:

[(1, 20199451168), (2, 10099725584), (4, 5049862792), (8, 2524931396), (13, 1553803936), (16, 1262465698), (26, 776901968), (32, 631232849), (52, 388450984), (104, 194225492), (208, 97112746), (416, 48556373), (541, 37337248), (1082, 18668624), (2164, 9334312), (4328, 4667156), (7033, 2872096), (8656, 2333578), (14066, 1436048), (17312, 1166789), (28132, 718024), (56264, 359012), (89753, 225056), (112528, 179506)]