12705280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{709}}^1$

素因数の和:739

約数の個数: 80

約数和(自身を含む): 34863840

約数和(自身を除く): 22158560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 709, 896, 1120, 1280, 1418, 1792, 2240, 2560, 2836, 3545, 3584, 4480, 4963, 5672, 7090, 8960, 9926, 11344, 14180, 17920, 19852, 22688, 24815, 28360, 39704, 45376, 49630, 56720, 79408, 90752, 99260, 113440, 158816, 181504, 198520, 226880, 317632, 363008, 397040, 453760, 635264, 794080, 907520, 1270528, 1588160, 1815040, 2541056, 3176320, 6352640, 12705280]

約数ペア:

[(1, 12705280), (2, 6352640), (4, 3176320), (5, 2541056), (7, 1815040), (8, 1588160), (10, 1270528), (14, 907520), (16, 794080), (20, 635264), (28, 453760), (32, 397040), (35, 363008), (40, 317632), (56, 226880), (64, 198520), (70, 181504), (80, 158816), (112, 113440), (128, 99260), (140, 90752), (160, 79408), (224, 56720), (256, 49630), (280, 45376), (320, 39704), (448, 28360), (512, 24815), (560, 22688), (640, 19852), (709, 17920), (896, 14180), (1120, 11344), (1280, 9926), (1418, 8960), (1792, 7090), (2240, 5672), (2560, 4963), (2836, 4480), (3545, 3584)]