81728780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583777}}^1$

素因数の和:583793

約数の個数: 24

約数和(自身を含む): 196149408

約数和(自身を除く): 114420628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583777, 1167554, 2335108, 2918885, 4086439, 5837770, 8172878, 11675540, 16345756, 20432195, 40864390, 81728780]

約数ペア:

[(1, 81728780), (2, 40864390), (4, 20432195), (5, 16345756), (7, 11675540), (10, 8172878), (14, 5837770), (20, 4086439), (28, 2918885), (35, 2335108), (70, 1167554), (140, 583777)]