20154404

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 36099840

約数和(自身を除く): 15945436

約数列:

[1, 2, 4, 67, 134, 157, 268, 314, 479, 628, 958, 1916, 10519, 21038, 32093, 42076, 64186, 75203, 128372, 150406, 300812, 5038601, 10077202, 20154404]

約数ペア:

[(1, 20154404), (2, 10077202), (4, 5038601), (67, 300812), (134, 150406), (157, 128372), (268, 75203), (314, 64186), (479, 42076), (628, 32093), (958, 21038), (1916, 10519)]