128238880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1487}}^1$

素因数の和:1527

約数の個数: 144

約数和(自身を含む): 384725376

約数和(自身を除く): 256486496

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1120, 1232, 1487, 1540, 1568, 1760, 1960, 2156, 2464, 2695, 2974, 3080, 3920, 4312, 5390, 5948, 6160, 7435, 7840, 8624, 10409, 10780, 11896, 12320, 14870, 16357, 17248, 20818, 21560, 23792, 29740, 32714, 41636, 43120, 47584, 52045, 59480, 65428, 72863, 81785, 83272, 86240, 104090, 114499, 118960, 130856, 145726, 163570, 166544, 208180, 228998, 237920, 261712, 291452, 327140, 333088, 364315, 416360, 457996, 523424, 572495, 582904, 654280, 728630, 801493, 832720, 915992, 1144990, 1165808, 1308560, 1457260, 1602986, 1665440, 1831984, 2289980, 2331616, 2617120, 2914520, 3205972, 3663968, 4007465, 4579960, 5829040, 6411944, 8014930, 9159920, 11658080, 12823888, 16029860, 18319840, 25647776, 32059720, 64119440, 128238880]

約数ペア:

[(1, 128238880), (2, 64119440), (4, 32059720), (5, 25647776), (7, 18319840), (8, 16029860), (10, 12823888), (11, 11658080), (14, 9159920), (16, 8014930), (20, 6411944), (22, 5829040), (28, 4579960), (32, 4007465), (35, 3663968), (40, 3205972), (44, 2914520), (49, 2617120), (55, 2331616), (56, 2289980), (70, 1831984), (77, 1665440), (80, 1602986), (88, 1457260), (98, 1308560), (110, 1165808), (112, 1144990), (140, 915992), (154, 832720), (160, 801493), (176, 728630), (196, 654280), (220, 582904), (224, 572495), (245, 523424), (280, 457996), (308, 416360), (352, 364315), (385, 333088), (392, 327140), (440, 291452), (490, 261712), (539, 237920), (560, 228998), (616, 208180), (770, 166544), (784, 163570), (880, 145726), (980, 130856), (1078, 118960), (1120, 114499), (1232, 104090), (1487, 86240), (1540, 83272), (1568, 81785), (1760, 72863), (1960, 65428), (2156, 59480), (2464, 52045), (2695, 47584), (2974, 43120), (3080, 41636), (3920, 32714), (4312, 29740), (5390, 23792), (5948, 21560), (6160, 20818), (7435, 17248), (7840, 16357), (8624, 14870), (10409, 12320), (10780, 11896)]