172904000

素因数分解:

$2^6\times 5^3\times {\mathrm{21613}}^1$

素因数の和:21640

約数の個数: 56

約数和(自身を含む): 428216568

約数和(自身を除く): 255312568

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, 2000, 4000, 8000, 21613, 43226, 86452, 108065, 172904, 216130, 345808, 432260, 540325, 691616, 864520, 1080650, 1383232, 1729040, 2161300, 2701625, 3458080, 4322600, 5403250, 6916160, 8645200, 10806500, 17290400, 21613000, 34580800, 43226000, 86452000, 172904000]

約数ペア:

[(1, 172904000), (2, 86452000), (4, 43226000), (5, 34580800), (8, 21613000), (10, 17290400), (16, 10806500), (20, 8645200), (25, 6916160), (32, 5403250), (40, 4322600), (50, 3458080), (64, 2701625), (80, 2161300), (100, 1729040), (125, 1383232), (160, 1080650), (200, 864520), (250, 691616), (320, 540325), (400, 432260), (500, 345808), (800, 216130), (1000, 172904), (1600, 108065), (2000, 86452), (4000, 43226), (8000, 21613)]