12780821998

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2143}}^1\times {\mathrm{3203}}^1$

素因数の和:5381

約数の個数: 48

約数和(自身を含む): 23493265920

約数和(自身を除く): 10712443922

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 2143, 3203, 4286, 6406, 15001, 22421, 30002, 40717, 44842, 60857, 81434, 105007, 121714, 156947, 210014, 285019, 313894, 425999, 570038, 851998, 1995133, 2981993, 3990266, 5963986, 6864029, 13728058, 48048203, 96096406, 130416551, 260833102, 336337421, 672674842, 912915857, 1825831714, 6390410999, 12780821998]

約数ペア:

[(1, 12780821998), (2, 6390410999), (7, 1825831714), (14, 912915857), (19, 672674842), (38, 336337421), (49, 260833102), (98, 130416551), (133, 96096406), (266, 48048203), (931, 13728058), (1862, 6864029), (2143, 5963986), (3203, 3990266), (4286, 2981993), (6406, 1995133), (15001, 851998), (22421, 570038), (30002, 425999), (40717, 313894), (44842, 285019), (60857, 210014), (81434, 156947), (105007, 121714)]