19689640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3593}}^1$

素因数の和:3741

約数の個数: 32

約数和(自身を含む): 44637480

約数和(自身を除く): 24947840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3593, 5480, 7186, 14372, 17965, 28744, 35930, 71860, 143720, 492241, 984482, 1968964, 2461205, 3937928, 4922410, 9844820, 19689640]

約数ペア:

[(1, 19689640), (2, 9844820), (4, 4922410), (5, 3937928), (8, 2461205), (10, 1968964), (20, 984482), (40, 492241), (137, 143720), (274, 71860), (548, 35930), (685, 28744), (1096, 17965), (1370, 14372), (2740, 7186), (3593, 5480)]