128288000

素因数分解:

$2^8\times 5^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 144

約数和(自身を含む): 337995840

約数和(自身を除く): 209707840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 125, 128, 152, 160, 190, 200, 211, 250, 256, 304, 320, 380, 400, 422, 475, 500, 608, 640, 760, 800, 844, 950, 1000, 1055, 1216, 1280, 1520, 1600, 1688, 1900, 2000, 2110, 2375, 2432, 3040, 3200, 3376, 3800, 4000, 4009, 4220, 4750, 4864, 5275, 6080, 6400, 6752, 7600, 8000, 8018, 8440, 9500, 10550, 12160, 13504, 15200, 16000, 16036, 16880, 19000, 20045, 21100, 24320, 26375, 27008, 30400, 32000, 32072, 33760, 38000, 40090, 42200, 52750, 54016, 60800, 64144, 67520, 76000, 80180, 84400, 100225, 105500, 121600, 128288, 135040, 152000, 160360, 168800, 200450, 211000, 256576, 270080, 304000, 320720, 337600, 400900, 422000, 501125, 513152, 608000, 641440, 675200, 801800, 844000, 1002250, 1026304, 1282880, 1350400, 1603600, 1688000, 2004500, 2565760, 3207200, 3376000, 4009000, 5131520, 6414400, 6752000, 8018000, 12828800, 16036000, 25657600, 32072000, 64144000, 128288000]

約数ペア:

[(1, 128288000), (2, 64144000), (4, 32072000), (5, 25657600), (8, 16036000), (10, 12828800), (16, 8018000), (19, 6752000), (20, 6414400), (25, 5131520), (32, 4009000), (38, 3376000), (40, 3207200), (50, 2565760), (64, 2004500), (76, 1688000), (80, 1603600), (95, 1350400), (100, 1282880), (125, 1026304), (128, 1002250), (152, 844000), (160, 801800), (190, 675200), (200, 641440), (211, 608000), (250, 513152), (256, 501125), (304, 422000), (320, 400900), (380, 337600), (400, 320720), (422, 304000), (475, 270080), (500, 256576), (608, 211000), (640, 200450), (760, 168800), (800, 160360), (844, 152000), (950, 135040), (1000, 128288), (1055, 121600), (1216, 105500), (1280, 100225), (1520, 84400), (1600, 80180), (1688, 76000), (1900, 67520), (2000, 64144), (2110, 60800), (2375, 54016), (2432, 52750), (3040, 42200), (3200, 40090), (3376, 38000), (3800, 33760), (4000, 32072), (4009, 32000), (4220, 30400), (4750, 27008), (4864, 26375), (5275, 24320), (6080, 21100), (6400, 20045), (6752, 19000), (7600, 16880), (8000, 16036), (8018, 16000), (8440, 15200), (9500, 13504), (10550, 12160)]