1778425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 2499840

約数和(自身を除く): 721415

約数列:

[1, 5, 11, 25, 29, 55, 145, 223, 275, 319, 725, 1115, 1595, 2453, 5575, 6467, 7975, 12265, 32335, 61325, 71137, 161675, 355685, 1778425]

約数ペア:

[(1, 1778425), (5, 355685), (11, 161675), (25, 71137), (29, 61325), (55, 32335), (145, 12265), (223, 7975), (275, 6467), (319, 5575), (725, 2453), (1115, 1595)]