203422280

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{28097}}^1$

素因数の和:28289

約数の個数: 32

約数和(自身を含む): 460245240

約数和(自身を除く): 256822960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 28097, 56194, 112388, 140485, 224776, 280970, 561940, 1123880, 5085557, 10171114, 20342228, 25427785, 40684456, 50855570, 101711140, 203422280]

約数ペア:

[(1, 203422280), (2, 101711140), (4, 50855570), (5, 40684456), (8, 25427785), (10, 20342228), (20, 10171114), (40, 5085557), (181, 1123880), (362, 561940), (724, 280970), (905, 224776), (1448, 140485), (1810, 112388), (3620, 56194), (7240, 28097)]