1278128929

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{65609}}^1$

素因数の和:65661

約数の個数: 24

約数和(自身を含む): 1675416960

約数和(自身を除く): 397288031

約数列:

[1, 7, 11, 23, 77, 121, 161, 253, 847, 1771, 2783, 19481, 65609, 459263, 721699, 1509007, 5051893, 7938689, 10563049, 16599077, 55570823, 116193539, 182589847, 1278128929]

約数ペア:

[(1, 1278128929), (7, 182589847), (11, 116193539), (23, 55570823), (77, 16599077), (121, 10563049), (161, 7938689), (253, 5051893), (847, 1509007), (1771, 721699), (2783, 459263), (19481, 65609)]