220218428

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{775417}}^1$

素因数の和:775492

約数の個数: 12

約数和(自身を含む): 390810672

約数和(自身を除く): 170592244

約数列:

[1, 2, 4, 71, 142, 284, 775417, 1550834, 3101668, 55054607, 110109214, 220218428]

約数ペア:

[(1, 220218428), (2, 110109214), (4, 55054607), (71, 3101668), (142, 1550834), (284, 775417)]