12729716180

素因数分解:

$2^2\times 5^1\times {\mathrm{636485809}}^1$

素因数の和:636485818

約数の個数: 12

約数和(自身を含む): 26732404020

約数和(自身を除く): 14002687840

約数列:

[1, 2, 4, 5, 10, 20, 636485809, 1272971618, 2545943236, 3182429045, 6364858090, 12729716180]

約数ペア:

[(1, 12729716180), (2, 6364858090), (4, 3182429045), (5, 2545943236), (10, 1272971618), (20, 636485809)]