18020295

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 32722560

約数和(自身を除く): 14702265

約数列:

[1, 3, 5, 9, 15, 37, 45, 79, 111, 137, 185, 237, 333, 395, 411, 555, 685, 711, 1185, 1233, 1665, 2055, 2923, 3555, 5069, 6165, 8769, 10823, 14615, 15207, 25345, 26307, 32469, 43845, 45621, 54115, 76035, 97407, 131535, 162345, 228105, 400451, 487035, 1201353, 2002255, 3604059, 6006765, 18020295]

約数ペア:

[(1, 18020295), (3, 6006765), (5, 3604059), (9, 2002255), (15, 1201353), (37, 487035), (45, 400451), (79, 228105), (111, 162345), (137, 131535), (185, 97407), (237, 76035), (333, 54115), (395, 45621), (411, 43845), (555, 32469), (685, 26307), (711, 25345), (1185, 15207), (1233, 14615), (1665, 10823), (2055, 8769), (2923, 6165), (3555, 5069)]