208989180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{387017}}^1$

素因数の和:387035

約数の個数: 48

約数和(自身を含む): 650190240

約数和(自身を除く): 441201060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 387017, 774034, 1161051, 1548068, 1935085, 2322102, 3483153, 3870170, 4644204, 5805255, 6966306, 7740340, 10449459, 11610510, 13932612, 17415765, 20898918, 23221020, 34831530, 41797836, 52247295, 69663060, 104494590, 208989180]

約数ペア:

[(1, 208989180), (2, 104494590), (3, 69663060), (4, 52247295), (5, 41797836), (6, 34831530), (9, 23221020), (10, 20898918), (12, 17415765), (15, 13932612), (18, 11610510), (20, 10449459), (27, 7740340), (30, 6966306), (36, 5805255), (45, 4644204), (54, 3870170), (60, 3483153), (90, 2322102), (108, 1935085), (135, 1548068), (180, 1161051), (270, 774034), (540, 387017)]