7889000

素因数分解:

$2^3\times 5^3\times 7^3\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 128

約数和(自身を含む): 22464000

約数和(自身を除く): 14575000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 92, 98, 100, 115, 125, 140, 161, 175, 184, 196, 200, 230, 245, 250, 280, 322, 343, 350, 392, 460, 490, 500, 575, 644, 686, 700, 805, 875, 920, 980, 1000, 1127, 1150, 1225, 1288, 1372, 1400, 1610, 1715, 1750, 1960, 2254, 2300, 2450, 2744, 2875, 3220, 3430, 3500, 4025, 4508, 4600, 4900, 5635, 5750, 6125, 6440, 6860, 7000, 7889, 8050, 8575, 9016, 9800, 11270, 11500, 12250, 13720, 15778, 16100, 17150, 20125, 22540, 23000, 24500, 28175, 31556, 32200, 34300, 39445, 40250, 42875, 45080, 49000, 56350, 63112, 68600, 78890, 80500, 85750, 112700, 140875, 157780, 161000, 171500, 197225, 225400, 281750, 315560, 343000, 394450, 563500, 788900, 986125, 1127000, 1577800, 1972250, 3944500, 7889000]

約数ペア:

[(1, 7889000), (2, 3944500), (4, 1972250), (5, 1577800), (7, 1127000), (8, 986125), (10, 788900), (14, 563500), (20, 394450), (23, 343000), (25, 315560), (28, 281750), (35, 225400), (40, 197225), (46, 171500), (49, 161000), (50, 157780), (56, 140875), (70, 112700), (92, 85750), (98, 80500), (100, 78890), (115, 68600), (125, 63112), (140, 56350), (161, 49000), (175, 45080), (184, 42875), (196, 40250), (200, 39445), (230, 34300), (245, 32200), (250, 31556), (280, 28175), (322, 24500), (343, 23000), (350, 22540), (392, 20125), (460, 17150), (490, 16100), (500, 15778), (575, 13720), (644, 12250), (686, 11500), (700, 11270), (805, 9800), (875, 9016), (920, 8575), (980, 8050), (1000, 7889), (1127, 7000), (1150, 6860), (1225, 6440), (1288, 6125), (1372, 5750), (1400, 5635), (1610, 4900), (1715, 4600), (1750, 4508), (1960, 4025), (2254, 3500), (2300, 3430), (2450, 3220), (2744, 2875)]