208045084

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{307759}}^1$

素因数の和:307789

約数の個数: 18

約数和(自身を含む): 394240560

約数和(自身を除く): 186195476

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 307759, 615518, 1231036, 4000867, 8001734, 16003468, 52011271, 104022542, 208045084]

約数ペア:

[(1, 208045084), (2, 104022542), (4, 52011271), (13, 16003468), (26, 8001734), (52, 4000867), (169, 1231036), (338, 615518), (676, 307759)]