205122578

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{43403}}^1$

素因数の和:43561

約数の個数: 16

約数和(自身を含む): 328134240

約数和(自身を除く): 123011662

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4726, 43403, 86806, 737851, 1475702, 6033017, 12066034, 102561289, 205122578]

約数ペア:

[(1, 205122578), (2, 102561289), (17, 12066034), (34, 6033017), (139, 1475702), (278, 737851), (2363, 86806), (4726, 43403)]