20780312

素因数分解:

$2^3\times 7^3\times {\mathrm{7573}}^1$

素因数の和:7600

約数の個数: 32

約数和(自身を含む): 45444000

約数和(自身を除く): 24663688

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7573, 15146, 30292, 53011, 60584, 106022, 212044, 371077, 424088, 742154, 1484308, 2597539, 2968616, 5195078, 10390156, 20780312]

約数ペア:

[(1, 20780312), (2, 10390156), (4, 5195078), (7, 2968616), (8, 2597539), (14, 1484308), (28, 742154), (49, 424088), (56, 371077), (98, 212044), (196, 106022), (343, 60584), (392, 53011), (686, 30292), (1372, 15146), (2744, 7573)]