200918000

素因数分解:

$2^4\times 5^3\times {\mathrm{100459}}^1$

素因数の和:100482

約数の個数: 40

約数和(自身を含む): 485824560

約数和(自身を除く): 284906560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 100459, 200918, 401836, 502295, 803672, 1004590, 1607344, 2009180, 2511475, 4018360, 5022950, 8036720, 10045900, 12557375, 20091800, 25114750, 40183600, 50229500, 100459000, 200918000]

約数ペア:

[(1, 200918000), (2, 100459000), (4, 50229500), (5, 40183600), (8, 25114750), (10, 20091800), (16, 12557375), (20, 10045900), (25, 8036720), (40, 5022950), (50, 4018360), (80, 2511475), (100, 2009180), (125, 1607344), (200, 1004590), (250, 803672), (400, 502295), (500, 401836), (1000, 200918), (2000, 100459)]