18001895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 24235200

約数和(自身を除く): 6233305

約数列:

[1, 5, 17, 29, 67, 85, 109, 145, 335, 493, 545, 1139, 1853, 1943, 2465, 3161, 5695, 7303, 9265, 9715, 15805, 33031, 36515, 53737, 124151, 165155, 211787, 268685, 620755, 1058935, 3600379, 18001895]

約数ペア:

[(1, 18001895), (5, 3600379), (17, 1058935), (29, 620755), (67, 268685), (85, 211787), (109, 165155), (145, 124151), (335, 53737), (493, 36515), (545, 33031), (1139, 15805), (1853, 9715), (1943, 9265), (2465, 7303), (3161, 5695)]