20209784

素因数分解:

$2^3\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1153}}^1$

素因数の和:1479

約数の個数: 32

約数和(自身を含む): 43482720

約数和(自身を除く): 23272936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 313, 626, 1153, 1252, 2191, 2306, 2504, 4382, 4612, 8071, 8764, 9224, 16142, 17528, 32284, 64568, 360889, 721778, 1443556, 2526223, 2887112, 5052446, 10104892, 20209784]

約数ペア:

[(1, 20209784), (2, 10104892), (4, 5052446), (7, 2887112), (8, 2526223), (14, 1443556), (28, 721778), (56, 360889), (313, 64568), (626, 32284), (1153, 17528), (1252, 16142), (2191, 9224), (2306, 8764), (2504, 8071), (4382, 4612)]