81177705

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{257707}}^1$

素因数の和:257725

約数の個数: 24

約数和(自身を含む): 160809792

約数和(自身を除く): 79632087

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 257707, 773121, 1288535, 1803949, 2319363, 3865605, 5411847, 9019745, 11596815, 16235541, 27059235, 81177705]

約数ペア:

[(1, 81177705), (3, 27059235), (5, 16235541), (7, 11596815), (9, 9019745), (15, 5411847), (21, 3865605), (35, 2319363), (45, 1803949), (63, 1288535), (105, 773121), (315, 257707)]