81252645

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2081}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 137911680

約数和(自身を除く): 56659035

約数列:

[1, 3, 5, 15, 19, 57, 95, 137, 285, 411, 685, 2055, 2081, 2603, 6243, 7809, 10405, 13015, 31215, 39045, 39539, 118617, 197695, 285097, 593085, 855291, 1425485, 4276455, 5416843, 16250529, 27084215, 81252645]

約数ペア:

[(1, 81252645), (3, 27084215), (5, 16250529), (15, 5416843), (19, 4276455), (57, 1425485), (95, 855291), (137, 593085), (285, 285097), (411, 197695), (685, 118617), (2055, 39539), (2081, 39045), (2603, 31215), (6243, 13015), (7809, 10405)]