1688000

素因数分解:

$2^6\times 5^3\times {\mathrm{211}}^1$

素因数の和:238

約数の個数: 56

約数和(自身を含む): 4200144

約数和(自身を除く): 2512144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 211, 250, 320, 400, 422, 500, 800, 844, 1000, 1055, 1600, 1688, 2000, 2110, 3376, 4000, 4220, 5275, 6752, 8000, 8440, 10550, 13504, 16880, 21100, 26375, 33760, 42200, 52750, 67520, 84400, 105500, 168800, 211000, 337600, 422000, 844000, 1688000]

約数ペア:

[(1, 1688000), (2, 844000), (4, 422000), (5, 337600), (8, 211000), (10, 168800), (16, 105500), (20, 84400), (25, 67520), (32, 52750), (40, 42200), (50, 33760), (64, 26375), (80, 21100), (100, 16880), (125, 13504), (160, 10550), (200, 8440), (211, 8000), (250, 6752), (320, 5275), (400, 4220), (422, 4000), (500, 3376), (800, 2110), (844, 2000), (1000, 1688), (1055, 1600)]