20198925

素因数分解:

$3^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{839}}^1$

素因数の和:962

約数の個数: 36

約数和(自身を含む): 36560160

約数和(自身を除く): 16361235

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 107, 225, 321, 535, 839, 963, 1605, 2517, 2675, 4195, 4815, 7551, 8025, 12585, 20975, 24075, 37755, 62925, 89773, 188775, 269319, 448865, 807957, 1346595, 2244325, 4039785, 6732975, 20198925]

約数ペア:

[(1, 20198925), (3, 6732975), (5, 4039785), (9, 2244325), (15, 1346595), (25, 807957), (45, 448865), (75, 269319), (107, 188775), (225, 89773), (321, 62925), (535, 37755), (839, 24075), (963, 20975), (1605, 12585), (2517, 8025), (2675, 7551), (4195, 4815)]