20494445

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 27561600

約数和(自身を除く): 7067155

約数列:

[1, 5, 19, 29, 43, 95, 145, 173, 215, 551, 817, 865, 1247, 2755, 3287, 4085, 5017, 6235, 7439, 16435, 23693, 25085, 37195, 95323, 118465, 141341, 215731, 476615, 706705, 1078655, 4098889, 20494445]

約数ペア:

[(1, 20494445), (5, 4098889), (19, 1078655), (29, 706705), (43, 476615), (95, 215731), (145, 141341), (173, 118465), (215, 95323), (551, 37195), (817, 25085), (865, 23693), (1247, 16435), (2755, 7439), (3287, 6235), (4085, 5017)]