205389900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{228211}}^1$

素因数の和:228231

約数の個数: 54

約数和(自身を含む): 643786052

約数和(自身を除く): 438396152

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 228211, 456422, 684633, 912844, 1141055, 1369266, 2053899, 2282110, 2738532, 3423165, 4107798, 4564220, 5705275, 6846330, 8215596, 10269495, 11410550, 13692660, 17115825, 20538990, 22821100, 34231650, 41077980, 51347475, 68463300, 102694950, 205389900]

約数ペア:

[(1, 205389900), (2, 102694950), (3, 68463300), (4, 51347475), (5, 41077980), (6, 34231650), (9, 22821100), (10, 20538990), (12, 17115825), (15, 13692660), (18, 11410550), (20, 10269495), (25, 8215596), (30, 6846330), (36, 5705275), (45, 4564220), (50, 4107798), (60, 3423165), (75, 2738532), (90, 2282110), (100, 2053899), (150, 1369266), (180, 1141055), (225, 912844), (300, 684633), (450, 456422), (900, 228211)]