81606560

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{1487}}^1$

素因数の和:1523

約数の個数: 96

約数和(自身を含む): 224985600

約数和(自身を除く): 143379040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1487, 1568, 1715, 1960, 2744, 2974, 3430, 3920, 5488, 5948, 6860, 7435, 7840, 10409, 10976, 11896, 13720, 14870, 20818, 23792, 27440, 29740, 41636, 47584, 52045, 54880, 59480, 72863, 83272, 104090, 118960, 145726, 166544, 208180, 237920, 291452, 333088, 364315, 416360, 510041, 582904, 728630, 832720, 1020082, 1165808, 1457260, 1665440, 2040164, 2331616, 2550205, 2914520, 4080328, 5100410, 5829040, 8160656, 10200820, 11658080, 16321312, 20401640, 40803280, 81606560]

約数ペア:

[(1, 81606560), (2, 40803280), (4, 20401640), (5, 16321312), (7, 11658080), (8, 10200820), (10, 8160656), (14, 5829040), (16, 5100410), (20, 4080328), (28, 2914520), (32, 2550205), (35, 2331616), (40, 2040164), (49, 1665440), (56, 1457260), (70, 1165808), (80, 1020082), (98, 832720), (112, 728630), (140, 582904), (160, 510041), (196, 416360), (224, 364315), (245, 333088), (280, 291452), (343, 237920), (392, 208180), (490, 166544), (560, 145726), (686, 118960), (784, 104090), (980, 83272), (1120, 72863), (1372, 59480), (1487, 54880), (1568, 52045), (1715, 47584), (1960, 41636), (2744, 29740), (2974, 27440), (3430, 23792), (3920, 20818), (5488, 14870), (5948, 13720), (6860, 11896), (7435, 10976), (7840, 10409)]