18993680

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1733}}^1$

素因数の和:1883

約数の個数: 40

約数和(自身を含む): 44508312

約数和(自身を除く): 25514632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1733, 2192, 2740, 3466, 5480, 6932, 8665, 10960, 13864, 17330, 27728, 34660, 69320, 138640, 237421, 474842, 949684, 1187105, 1899368, 2374210, 3798736, 4748420, 9496840, 18993680]

約数ペア:

[(1, 18993680), (2, 9496840), (4, 4748420), (5, 3798736), (8, 2374210), (10, 1899368), (16, 1187105), (20, 949684), (40, 474842), (80, 237421), (137, 138640), (274, 69320), (548, 34660), (685, 27728), (1096, 17330), (1370, 13864), (1733, 10960), (2192, 8665), (2740, 6932), (3466, 5480)]