128765300

素因数分解:

$2^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{10139}}^1$

素因数の和:10280

約数の個数: 36

約数和(自身を含む): 281648640

約数和(自身を除く): 152883340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 127, 254, 508, 635, 1270, 2540, 3175, 6350, 10139, 12700, 20278, 40556, 50695, 101390, 202780, 253475, 506950, 1013900, 1287653, 2575306, 5150612, 6438265, 12876530, 25753060, 32191325, 64382650, 128765300]

約数ペア:

[(1, 128765300), (2, 64382650), (4, 32191325), (5, 25753060), (10, 12876530), (20, 6438265), (25, 5150612), (50, 2575306), (100, 1287653), (127, 1013900), (254, 506950), (508, 253475), (635, 202780), (1270, 101390), (2540, 50695), (3175, 40556), (6350, 20278), (10139, 12700)]