844000

素因数分解:

$2^5\times 5^3\times {\mathrm{211}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 2083536

約数和(自身を除く): 1239536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 211, 250, 400, 422, 500, 800, 844, 1000, 1055, 1688, 2000, 2110, 3376, 4000, 4220, 5275, 6752, 8440, 10550, 16880, 21100, 26375, 33760, 42200, 52750, 84400, 105500, 168800, 211000, 422000, 844000]

約数ペア:

[(1, 844000), (2, 422000), (4, 211000), (5, 168800), (8, 105500), (10, 84400), (16, 52750), (20, 42200), (25, 33760), (32, 26375), (40, 21100), (50, 16880), (80, 10550), (100, 8440), (125, 6752), (160, 5275), (200, 4220), (211, 4000), (250, 3376), (400, 2110), (422, 2000), (500, 1688), (800, 1055), (844, 1000)]