18064000

素因数分解:

$2^7\times 5^3\times {\mathrm{1129}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 44951400

約数和(自身を除く): 26887400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1129, 1600, 2000, 2258, 3200, 4000, 4516, 5645, 8000, 9032, 11290, 16000, 18064, 22580, 28225, 36128, 45160, 56450, 72256, 90320, 112900, 141125, 144512, 180640, 225800, 282250, 361280, 451600, 564500, 722560, 903200, 1129000, 1806400, 2258000, 3612800, 4516000, 9032000, 18064000]

約数ペア:

[(1, 18064000), (2, 9032000), (4, 4516000), (5, 3612800), (8, 2258000), (10, 1806400), (16, 1129000), (20, 903200), (25, 722560), (32, 564500), (40, 451600), (50, 361280), (64, 282250), (80, 225800), (100, 180640), (125, 144512), (128, 141125), (160, 112900), (200, 90320), (250, 72256), (320, 56450), (400, 45160), (500, 36128), (640, 28225), (800, 22580), (1000, 18064), (1129, 16000), (1600, 11290), (2000, 9032), (2258, 8000), (3200, 5645), (4000, 4516)]