20006560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17863}}^1$

素因数の和:17885

約数の個数: 48

約数和(自身を含む): 54020736

約数和(自身を除く): 34014176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17863, 35726, 71452, 89315, 125041, 142904, 178630, 250082, 285808, 357260, 500164, 571616, 625205, 714520, 1000328, 1250410, 1429040, 2000656, 2500820, 2858080, 4001312, 5001640, 10003280, 20006560]

約数ペア:

[(1, 20006560), (2, 10003280), (4, 5001640), (5, 4001312), (7, 2858080), (8, 2500820), (10, 2000656), (14, 1429040), (16, 1250410), (20, 1000328), (28, 714520), (32, 625205), (35, 571616), (40, 500164), (56, 357260), (70, 285808), (80, 250082), (112, 178630), (140, 142904), (160, 125041), (224, 89315), (280, 71452), (560, 35726), (1120, 17863)]