128821000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1$

素因数の和:285

約数の個数: 192

約数和(自身を含む): 384134400

約数和(自身を除く): 255313400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 49, 50, 55, 56, 70, 77, 88, 98, 100, 110, 125, 140, 154, 175, 196, 200, 220, 239, 245, 250, 275, 280, 308, 350, 385, 392, 440, 478, 490, 500, 539, 550, 616, 700, 770, 875, 956, 980, 1000, 1078, 1100, 1195, 1225, 1375, 1400, 1540, 1673, 1750, 1912, 1925, 1960, 2156, 2200, 2390, 2450, 2629, 2695, 2750, 3080, 3346, 3500, 3850, 4312, 4780, 4900, 5258, 5390, 5500, 5975, 6125, 6692, 7000, 7700, 8365, 9560, 9625, 9800, 10516, 10780, 11000, 11711, 11950, 12250, 13145, 13384, 13475, 15400, 16730, 18403, 19250, 21032, 21560, 23422, 23900, 24500, 26290, 26950, 29875, 33460, 36806, 38500, 41825, 46844, 47800, 49000, 52580, 53900, 58555, 59750, 65725, 66920, 67375, 73612, 77000, 83650, 92015, 93688, 105160, 107800, 117110, 119500, 128821, 131450, 134750, 147224, 167300, 184030, 209125, 234220, 239000, 257642, 262900, 269500, 292775, 328625, 334600, 368060, 418250, 460075, 468440, 515284, 525800, 539000, 585550, 644105, 657250, 736120, 836500, 920150, 1030568, 1171100, 1288210, 1314500, 1463875, 1673000, 1840300, 2300375, 2342200, 2576420, 2629000, 2927750, 3220525, 3680600, 4600750, 5152840, 5855500, 6441050, 9201500, 11711000, 12882100, 16102625, 18403000, 25764200, 32205250, 64410500, 128821000]

約数ペア:

[(1, 128821000), (2, 64410500), (4, 32205250), (5, 25764200), (7, 18403000), (8, 16102625), (10, 12882100), (11, 11711000), (14, 9201500), (20, 6441050), (22, 5855500), (25, 5152840), (28, 4600750), (35, 3680600), (40, 3220525), (44, 2927750), (49, 2629000), (50, 2576420), (55, 2342200), (56, 2300375), (70, 1840300), (77, 1673000), (88, 1463875), (98, 1314500), (100, 1288210), (110, 1171100), (125, 1030568), (140, 920150), (154, 836500), (175, 736120), (196, 657250), (200, 644105), (220, 585550), (239, 539000), (245, 525800), (250, 515284), (275, 468440), (280, 460075), (308, 418250), (350, 368060), (385, 334600), (392, 328625), (440, 292775), (478, 269500), (490, 262900), (500, 257642), (539, 239000), (550, 234220), (616, 209125), (700, 184030), (770, 167300), (875, 147224), (956, 134750), (980, 131450), (1000, 128821), (1078, 119500), (1100, 117110), (1195, 107800), (1225, 105160), (1375, 93688), (1400, 92015), (1540, 83650), (1673, 77000), (1750, 73612), (1912, 67375), (1925, 66920), (1960, 65725), (2156, 59750), (2200, 58555), (2390, 53900), (2450, 52580), (2629, 49000), (2695, 47800), (2750, 46844), (3080, 41825), (3346, 38500), (3500, 36806), (3850, 33460), (4312, 29875), (4780, 26950), (4900, 26290), (5258, 24500), (5390, 23900), (5500, 23422), (5975, 21560), (6125, 21032), (6692, 19250), (7000, 18403), (7700, 16730), (8365, 15400), (9560, 13475), (9625, 13384), (9800, 13145), (10516, 12250), (10780, 11950), (11000, 11711)]