78190868

素因数分解:

$2^2\times 7^2\times {\mathrm{398933}}^1$

素因数の和:398951

約数の個数: 18

約数和(自身を含む): 159174666

約数和(自身を除く): 80983798

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 398933, 797866, 1595732, 2792531, 5585062, 11170124, 19547717, 39095434, 78190868]

約数ペア:

[(1, 78190868), (2, 39095434), (4, 19547717), (7, 11170124), (14, 5585062), (28, 2792531), (49, 1595732), (98, 797866), (196, 398933)]