25808000

素因数分解:

$2^7\times 5^3\times {\mathrm{1613}}^1$

素因数の和:1642

約数の個数: 64

約数和(自身を含む): 64204920

約数和(自身を除く): 38396920

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, 1600, 1613, 2000, 3200, 3226, 4000, 6452, 8000, 8065, 12904, 16000, 16130, 25808, 32260, 40325, 51616, 64520, 80650, 103232, 129040, 161300, 201625, 206464, 258080, 322600, 403250, 516160, 645200, 806500, 1032320, 1290400, 1613000, 2580800, 3226000, 5161600, 6452000, 12904000, 25808000]

約数ペア:

[(1, 25808000), (2, 12904000), (4, 6452000), (5, 5161600), (8, 3226000), (10, 2580800), (16, 1613000), (20, 1290400), (25, 1032320), (32, 806500), (40, 645200), (50, 516160), (64, 403250), (80, 322600), (100, 258080), (125, 206464), (128, 201625), (160, 161300), (200, 129040), (250, 103232), (320, 80650), (400, 64520), (500, 51616), (640, 40325), (800, 32260), (1000, 25808), (1600, 16130), (1613, 16000), (2000, 12904), (3200, 8065), (3226, 8000), (4000, 6452)]