18938780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135277}}^1$

素因数の和:135293

約数の個数: 24

約数和(自身を含む): 45453408

約数和(自身を除く): 26514628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135277, 270554, 541108, 676385, 946939, 1352770, 1893878, 2705540, 3787756, 4734695, 9469390, 18938780]

約数ペア:

[(1, 18938780), (2, 9469390), (4, 4734695), (5, 3787756), (7, 2705540), (10, 1893878), (14, 1352770), (20, 946939), (28, 676385), (35, 541108), (70, 270554), (140, 135277)]