256576000

素因数分解:

$2^9\times 5^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:263

約数の個数: 160

約数和(自身を含む): 676653120

約数和(自身を除く): 420077120

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, 512, 608, 640, 760, 800, 844, 950, 1000, 1055, 1216, 1280, 1520, 1600, 1688, 1900, 2000, 2110, 2375, 2432, 2560, 3040, 3200, 3376, 3800, 4000, 4009, 4220, 4750, 4864, 5275, 6080, 6400, 6752, 7600, 8000, 8018, 8440, 9500, 9728, 10550, 12160, 12800, 13504, 15200, 16000, 16036, 16880, 19000, 20045, 21100, 24320, 26375, 27008, 30400, 32000, 32072, 33760, 38000, 40090, 42200, 48640, 52750, 54016, 60800, 64000, 64144, 67520, 76000, 80180, 84400, 100225, 105500, 108032, 121600, 128288, 135040, 152000, 160360, 168800, 200450, 211000, 243200, 256576, 270080, 304000, 320720, 337600, 400900, 422000, 501125, 513152, 540160, 608000, 641440, 675200, 801800, 844000, 1002250, 1026304, 1216000, 1282880, 1350400, 1603600, 1688000, 2004500, 2052608, 2565760, 2700800, 3207200, 3376000, 4009000, 5131520, 6414400, 6752000, 8018000, 10263040, 12828800, 13504000, 16036000, 25657600, 32072000, 51315200, 64144000, 128288000, 256576000]

約数ペア:

[(1, 256576000), (2, 128288000), (4, 64144000), (5, 51315200), (8, 32072000), (10, 25657600), (16, 16036000), (19, 13504000), (20, 12828800), (25, 10263040), (32, 8018000), (38, 6752000), (40, 6414400), (50, 5131520), (64, 4009000), (76, 3376000), (80, 3207200), (95, 2700800), (100, 2565760), (125, 2052608), (128, 2004500), (152, 1688000), (160, 1603600), (190, 1350400), (200, 1282880), (211, 1216000), (250, 1026304), (256, 1002250), (304, 844000), (320, 801800), (380, 675200), (400, 641440), (422, 608000), (475, 540160), (500, 513152), (512, 501125), (608, 422000), (640, 400900), (760, 337600), (800, 320720), (844, 304000), (950, 270080), (1000, 256576), (1055, 243200), (1216, 211000), (1280, 200450), (1520, 168800), (1600, 160360), (1688, 152000), (1900, 135040), (2000, 128288), (2110, 121600), (2375, 108032), (2432, 105500), (2560, 100225), (3040, 84400), (3200, 80180), (3376, 76000), (3800, 67520), (4000, 64144), (4009, 64000), (4220, 60800), (4750, 54016), (4864, 52750), (5275, 48640), (6080, 42200), (6400, 40090), (6752, 38000), (7600, 33760), (8000, 32072), (8018, 32000), (8440, 30400), (9500, 27008), (9728, 26375), (10550, 24320), (12160, 21100), (12800, 20045), (13504, 19000), (15200, 16880), (16000, 16036)]