201521180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1439437}}^1$

素因数の和:1439453

約数の個数: 24

約数和(自身を含む): 483651168

約数和(自身を除く): 282129988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1439437, 2878874, 5757748, 7197185, 10076059, 14394370, 20152118, 28788740, 40304236, 50380295, 100760590, 201521180]

約数ペア:

[(1, 201521180), (2, 100760590), (4, 50380295), (5, 40304236), (7, 28788740), (10, 20152118), (14, 14394370), (20, 10076059), (28, 7197185), (35, 5757748), (70, 2878874), (140, 1439437)]