1296204940

素因数分解:

$2^2\times 5^1\times {\mathrm{64810247}}^1$

素因数の和:64810256

約数の個数: 12

約数和(自身を含む): 2722030416

約数和(自身を除く): 1425825476

約数列:

[1, 2, 4, 5, 10, 20, 64810247, 129620494, 259240988, 324051235, 648102470, 1296204940]

約数ペア:

[(1, 1296204940), (2, 648102470), (4, 324051235), (5, 259240988), (10, 129620494), (20, 64810247)]