20402480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36433}}^1$

素因数の和:36453

約数の個数: 40

約数和(自身を含む): 54213792

約数和(自身を除く): 33811312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36433, 72866, 145732, 182165, 255031, 291464, 364330, 510062, 582928, 728660, 1020124, 1275155, 1457320, 2040248, 2550310, 2914640, 4080496, 5100620, 10201240, 20402480]

約数ペア:

[(1, 20402480), (2, 10201240), (4, 5100620), (5, 4080496), (7, 2914640), (8, 2550310), (10, 2040248), (14, 1457320), (16, 1275155), (20, 1020124), (28, 728660), (35, 582928), (40, 510062), (56, 364330), (70, 291464), (80, 255031), (112, 182165), (140, 145732), (280, 72866), (560, 36433)]