205013960

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{26017}}^1$

素因数の和:26225

約数の個数: 32

約数和(自身を含む): 463640760

約数和(自身を除く): 258626800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 26017, 52034, 104068, 130085, 208136, 260170, 520340, 1040680, 5125349, 10250698, 20501396, 25626745, 41002792, 51253490, 102506980, 205013960]

約数ペア:

[(1, 205013960), (2, 102506980), (4, 51253490), (5, 41002792), (8, 25626745), (10, 20501396), (20, 10250698), (40, 5125349), (197, 1040680), (394, 520340), (788, 260170), (985, 208136), (1576, 130085), (1970, 104068), (3940, 52034), (7880, 26017)]