205389180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{8209}}^1$

素因数の和:8363

約数の個数: 72

約数和(自身を含む): 627572400

約数和(自身を除く): 422183220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8209, 8340, 12510, 16418, 24627, 25020, 32836, 41045, 49254, 73881, 82090, 98508, 123135, 147762, 164180, 246270, 295524, 369405, 492540, 738810, 1141051, 1477620, 2282102, 3423153, 4564204, 5705255, 6846306, 10269459, 11410510, 13692612, 17115765, 20538918, 22821020, 34231530, 41077836, 51347295, 68463060, 102694590, 205389180]

約数ペア:

[(1, 205389180), (2, 102694590), (3, 68463060), (4, 51347295), (5, 41077836), (6, 34231530), (9, 22821020), (10, 20538918), (12, 17115765), (15, 13692612), (18, 11410510), (20, 10269459), (30, 6846306), (36, 5705255), (45, 4564204), (60, 3423153), (90, 2282102), (139, 1477620), (180, 1141051), (278, 738810), (417, 492540), (556, 369405), (695, 295524), (834, 246270), (1251, 164180), (1390, 147762), (1668, 123135), (2085, 98508), (2502, 82090), (2780, 73881), (4170, 49254), (5004, 41045), (6255, 32836), (8209, 25020), (8340, 24627), (12510, 16418)]