81477675

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{12487}}^1$

素因数の和:12532

約数の個数: 36

約数和(自身を含む): 150979920

約数和(自身を除く): 69502245

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 12487, 37461, 62435, 112383, 187305, 312175, 362123, 561915, 936525, 1086369, 1810615, 2809575, 3259107, 5431845, 9053075, 16295535, 27159225, 81477675]

約数ペア:

[(1, 81477675), (3, 27159225), (5, 16295535), (9, 9053075), (15, 5431845), (25, 3259107), (29, 2809575), (45, 1810615), (75, 1086369), (87, 936525), (145, 561915), (225, 362123), (261, 312175), (435, 187305), (725, 112383), (1305, 62435), (2175, 37461), (6525, 12487)]