128515300

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{13249}}^1$

素因数の和:13360

約数の個数: 36

約数和(自身を含む): 281774500

約数和(自身を除く): 153259200

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2425, 4850, 9700, 13249, 26498, 52996, 66245, 132490, 264980, 331225, 662450, 1285153, 1324900, 2570306, 5140612, 6425765, 12851530, 25703060, 32128825, 64257650, 128515300]

約数ペア:

[(1, 128515300), (2, 64257650), (4, 32128825), (5, 25703060), (10, 12851530), (20, 6425765), (25, 5140612), (50, 2570306), (97, 1324900), (100, 1285153), (194, 662450), (388, 331225), (485, 264980), (970, 132490), (1940, 66245), (2425, 52996), (4850, 26498), (9700, 13249)]