78406076

素因数分解:

$2^2\times 7^2\times {\mathrm{400031}}^1$

素因数の和:400049

約数の個数: 18

約数和(自身を含む): 159612768

約数和(自身を除く): 81206692

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 400031, 800062, 1600124, 2800217, 5600434, 11200868, 19601519, 39203038, 78406076]

約数ペア:

[(1, 78406076), (2, 39203038), (4, 19601519), (7, 11200868), (14, 5600434), (28, 2800217), (49, 1600124), (98, 800062), (196, 400031)]