20306295

素因数分解:

$3^8\times 5^1\times {\mathrm{619}}^1$

素因数の和:648

約数の個数: 36

約数和(自身を含む): 36608520

約数和(自身を除く): 16302225

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 619, 729, 1215, 1857, 2187, 3095, 3645, 5571, 6561, 9285, 10935, 16713, 27855, 32805, 50139, 83565, 150417, 250695, 451251, 752085, 1353753, 2256255, 4061259, 6768765, 20306295]

約数ペア:

[(1, 20306295), (3, 6768765), (5, 4061259), (9, 2256255), (15, 1353753), (27, 752085), (45, 451251), (81, 250695), (135, 150417), (243, 83565), (405, 50139), (619, 32805), (729, 27855), (1215, 16713), (1857, 10935), (2187, 9285), (3095, 6561), (3645, 5571)]