19906880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{8887}}^1$

素因数の和:8911

約数の個数: 56

約数和(自身を含む): 54181248

約数和(自身を除く): 34274368

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, 8887, 17774, 35548, 44435, 62209, 71096, 88870, 124418, 142192, 177740, 248836, 284384, 311045, 355480, 497672, 568768, 622090, 710960, 995344, 1244180, 1421920, 1990688, 2488360, 2843840, 3981376, 4976720, 9953440, 19906880]

約数ペア:

[(1, 19906880), (2, 9953440), (4, 4976720), (5, 3981376), (7, 2843840), (8, 2488360), (10, 1990688), (14, 1421920), (16, 1244180), (20, 995344), (28, 710960), (32, 622090), (35, 568768), (40, 497672), (56, 355480), (64, 311045), (70, 284384), (80, 248836), (112, 177740), (140, 142192), (160, 124418), (224, 88870), (280, 71096), (320, 62209), (448, 44435), (560, 35548), (1120, 17774), (2240, 8887)]