187821520

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{17137}}^1$

素因数の和:17287

約数の個数: 40

約数和(自身を含む): 439898184

約数和(自身を除く): 252076664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 5480, 10960, 17137, 34274, 68548, 85685, 137096, 171370, 274192, 342740, 685480, 1370960, 2347769, 4695538, 9391076, 11738845, 18782152, 23477690, 37564304, 46955380, 93910760, 187821520]

約数ペア:

[(1, 187821520), (2, 93910760), (4, 46955380), (5, 37564304), (8, 23477690), (10, 18782152), (16, 11738845), (20, 9391076), (40, 4695538), (80, 2347769), (137, 1370960), (274, 685480), (548, 342740), (685, 274192), (1096, 171370), (1370, 137096), (2192, 85685), (2740, 68548), (5480, 34274), (10960, 17137)]