12878300

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{1447}}^1$

素因数の和:1550

約数の個数: 36

約数和(自身を含む): 28279440

約数和(自身を除く): 15401140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1447, 1780, 2225, 2894, 4450, 5788, 7235, 8900, 14470, 28940, 36175, 72350, 128783, 144700, 257566, 515132, 643915, 1287830, 2575660, 3219575, 6439150, 12878300]

約数ペア:

[(1, 12878300), (2, 6439150), (4, 3219575), (5, 2575660), (10, 1287830), (20, 643915), (25, 515132), (50, 257566), (89, 144700), (100, 128783), (178, 72350), (356, 36175), (445, 28940), (890, 14470), (1447, 8900), (1780, 7235), (2225, 5788), (2894, 4450)]