20457248

素因数分解:

$2^5\times 7^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:625

約数の個数: 48

約数和(自身を含む): 46335744

約数和(自身を除く): 25878496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 271, 337, 542, 674, 1084, 1348, 1897, 2168, 2359, 2696, 3794, 4336, 4718, 5392, 7588, 8672, 9436, 10784, 15176, 18872, 30352, 37744, 60704, 75488, 91327, 182654, 365308, 639289, 730616, 1278578, 1461232, 2557156, 2922464, 5114312, 10228624, 20457248]

約数ペア:

[(1, 20457248), (2, 10228624), (4, 5114312), (7, 2922464), (8, 2557156), (14, 1461232), (16, 1278578), (28, 730616), (32, 639289), (56, 365308), (112, 182654), (224, 91327), (271, 75488), (337, 60704), (542, 37744), (674, 30352), (1084, 18872), (1348, 15176), (1897, 10784), (2168, 9436), (2359, 8672), (2696, 7588), (3794, 5392), (4336, 4718)]