81947280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{341447}}^1$

素因数の和:341463

約数の個数: 40

約数和(自身を含む): 254037312

約数和(自身を除く): 172090032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 341447, 682894, 1024341, 1365788, 1707235, 2048682, 2731576, 3414470, 4097364, 5121705, 5463152, 6828940, 8194728, 10243410, 13657880, 16389456, 20486820, 27315760, 40973640, 81947280]

約数ペア:

[(1, 81947280), (2, 40973640), (3, 27315760), (4, 20486820), (5, 16389456), (6, 13657880), (8, 10243410), (10, 8194728), (12, 6828940), (15, 5463152), (16, 5121705), (20, 4097364), (24, 3414470), (30, 2731576), (40, 2048682), (48, 1707235), (60, 1365788), (80, 1024341), (120, 682894), (240, 341447)]