165415280

素因数分解:

$2^4\times 5^1\times {\mathrm{2067691}}^1$

素因数の和:2067704

約数の個数: 20

約数和(自身を含む): 384590712

約数和(自身を除く): 219175432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2067691, 4135382, 8270764, 10338455, 16541528, 20676910, 33083056, 41353820, 82707640, 165415280]

約数ペア:

[(1, 165415280), (2, 82707640), (4, 41353820), (5, 33083056), (8, 20676910), (10, 16541528), (16, 10338455), (20, 8270764), (40, 4135382), (80, 2067691)]