54517780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 117056016

約数和(自身を除く): 62538236

約数列:

[1, 2, 4, 5, 10, 20, 101, 137, 197, 202, 274, 394, 404, 505, 548, 685, 788, 985, 1010, 1370, 1970, 2020, 2740, 3940, 13837, 19897, 26989, 27674, 39794, 53978, 55348, 69185, 79588, 99485, 107956, 134945, 138370, 198970, 269890, 276740, 397940, 539780, 2725889, 5451778, 10903556, 13629445, 27258890, 54517780]

約数ペア:

[(1, 54517780), (2, 27258890), (4, 13629445), (5, 10903556), (10, 5451778), (20, 2725889), (101, 539780), (137, 397940), (197, 276740), (202, 269890), (274, 198970), (394, 138370), (404, 134945), (505, 107956), (548, 99485), (685, 79588), (788, 69185), (985, 55348), (1010, 53978), (1370, 39794), (1970, 27674), (2020, 26989), (2740, 19897), (3940, 13837)]