78780044

素因数分解:

$2^2\times 7^2\times {\mathrm{401939}}^1$

素因数の和:401957

約数の個数: 18

約数和(自身を含む): 160374060

約数和(自身を除く): 81594016

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 401939, 803878, 1607756, 2813573, 5627146, 11254292, 19695011, 39390022, 78780044]

約数ペア:

[(1, 78780044), (2, 39390022), (4, 19695011), (7, 11254292), (14, 5627146), (28, 2813573), (49, 1607756), (98, 803878), (196, 401939)]