1808000

素因数分解:

$2^7\times 5^3\times {\mathrm{113}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 4534920

約数和(自身を除く): 2726920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 113, 125, 128, 160, 200, 226, 250, 320, 400, 452, 500, 565, 640, 800, 904, 1000, 1130, 1600, 1808, 2000, 2260, 2825, 3200, 3616, 4000, 4520, 5650, 7232, 8000, 9040, 11300, 14125, 14464, 16000, 18080, 22600, 28250, 36160, 45200, 56500, 72320, 90400, 113000, 180800, 226000, 361600, 452000, 904000, 1808000]

約数ペア:

[(1, 1808000), (2, 904000), (4, 452000), (5, 361600), (8, 226000), (10, 180800), (16, 113000), (20, 90400), (25, 72320), (32, 56500), (40, 45200), (50, 36160), (64, 28250), (80, 22600), (100, 18080), (113, 16000), (125, 14464), (128, 14125), (160, 11300), (200, 9040), (226, 8000), (250, 7232), (320, 5650), (400, 4520), (452, 4000), (500, 3616), (565, 3200), (640, 2825), (800, 2260), (904, 2000), (1000, 1808), (1130, 1600)]