20257112

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1237}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 40111200

約数和(自身を除く): 19854088

約数列:

[1, 2, 4, 8, 23, 46, 89, 92, 178, 184, 356, 712, 1237, 2047, 2474, 4094, 4948, 8188, 9896, 16376, 28451, 56902, 110093, 113804, 220186, 227608, 440372, 880744, 2532139, 5064278, 10128556, 20257112]

約数ペア:

[(1, 20257112), (2, 10128556), (4, 5064278), (8, 2532139), (23, 880744), (46, 440372), (89, 227608), (92, 220186), (178, 113804), (184, 110093), (356, 56902), (712, 28451), (1237, 16376), (2047, 9896), (2474, 8188), (4094, 4948)]