81609920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{36433}}^1$

素因数の和:36457

約数の個数: 56

約数和(自身を含む): 222101664

約数和(自身を除く): 140491744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 36433, 72866, 145732, 182165, 255031, 291464, 364330, 510062, 582928, 728660, 1020124, 1165856, 1275155, 1457320, 2040248, 2331712, 2550310, 2914640, 4080496, 5100620, 5829280, 8160992, 10201240, 11658560, 16321984, 20402480, 40804960, 81609920]

約数ペア:

[(1, 81609920), (2, 40804960), (4, 20402480), (5, 16321984), (7, 11658560), (8, 10201240), (10, 8160992), (14, 5829280), (16, 5100620), (20, 4080496), (28, 2914640), (32, 2550310), (35, 2331712), (40, 2040248), (56, 1457320), (64, 1275155), (70, 1165856), (80, 1020124), (112, 728660), (140, 582928), (160, 510062), (224, 364330), (280, 291464), (320, 255031), (448, 182165), (560, 145732), (1120, 72866), (2240, 36433)]