80769280

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 195917400

約数和(自身を除く): 115148120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 640, 709, 712, 890, 1280, 1418, 1424, 1780, 2836, 2848, 3545, 3560, 5672, 5696, 7090, 7120, 11344, 11392, 14180, 14240, 22688, 22784, 28360, 28480, 45376, 56720, 56960, 63101, 90752, 113440, 113920, 126202, 181504, 226880, 252404, 315505, 453760, 504808, 631010, 907520, 1009616, 1262020, 2019232, 2524040, 4038464, 5048080, 8076928, 10096160, 16153856, 20192320, 40384640, 80769280]

約数ペア:

[(1, 80769280), (2, 40384640), (4, 20192320), (5, 16153856), (8, 10096160), (10, 8076928), (16, 5048080), (20, 4038464), (32, 2524040), (40, 2019232), (64, 1262020), (80, 1009616), (89, 907520), (128, 631010), (160, 504808), (178, 453760), (256, 315505), (320, 252404), (356, 226880), (445, 181504), (640, 126202), (709, 113920), (712, 113440), (890, 90752), (1280, 63101), (1418, 56960), (1424, 56720), (1780, 45376), (2836, 28480), (2848, 28360), (3545, 22784), (3560, 22688), (5672, 14240), (5696, 14180), (7090, 11392), (7120, 11344)]