200720009

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 252518400

約数和(自身を除く): 51798391

約数列:

[1, 7, 19, 31, 89, 133, 217, 547, 589, 623, 1691, 2759, 3829, 4123, 10393, 11837, 16957, 19313, 48683, 52421, 72751, 118699, 322183, 340781, 366947, 924977, 1509173, 2255281, 6474839, 10564211, 28674287, 200720009]

約数ペア:

[(1, 200720009), (7, 28674287), (19, 10564211), (31, 6474839), (89, 2255281), (133, 1509173), (217, 924977), (547, 366947), (589, 340781), (623, 322183), (1691, 118699), (2759, 72751), (3829, 52421), (4123, 48683), (10393, 19313), (11837, 16957)]