12904000

素因数分解:

$2^6\times 5^3\times {\mathrm{1613}}^1$

素因数の和:1640

約数の個数: 56

約数和(自身を含む): 31976568

約数和(自身を除く): 19072568

約数列:

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

約数ペア:

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