64890719

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 73582080

約数和(自身を除く): 8691361

約数列:

[1, 19, 29, 31, 131, 551, 589, 841, 899, 2489, 3799, 4061, 15979, 17081, 26071, 72181, 77159, 110171, 117769, 495349, 2093249, 2237611, 3415301, 64890719]

約数ペア:

[(1, 64890719), (19, 3415301), (29, 2237611), (31, 2093249), (131, 495349), (551, 117769), (589, 110171), (841, 77159), (899, 72181), (2489, 26071), (3799, 17081), (4061, 15979)]