20917670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1237}}^1$

素因数の和:1352

約数の個数: 32

約数和(自身を含む): 40111200

約数和(自身を除く): 19193530

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 890, 1237, 1691, 2474, 3382, 6185, 8455, 12370, 16910, 23503, 47006, 110093, 117515, 220186, 235030, 550465, 1100930, 2091767, 4183534, 10458835, 20917670]

約数ペア:

[(1, 20917670), (2, 10458835), (5, 4183534), (10, 2091767), (19, 1100930), (38, 550465), (89, 235030), (95, 220186), (178, 117515), (190, 110093), (445, 47006), (890, 23503), (1237, 16910), (1691, 12370), (2474, 8455), (3382, 6185)]