28787050

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{6469}}^1$

素因数の和:6570

約数の個数: 24

約数和(自身を含む): 54153900

約数和(自身を除く): 25366850

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 6469, 12938, 32345, 64690, 161725, 323450, 575741, 1151482, 2878705, 5757410, 14393525, 28787050]

約数ペア:

[(1, 28787050), (2, 14393525), (5, 5757410), (10, 2878705), (25, 1151482), (50, 575741), (89, 323450), (178, 161725), (445, 64690), (890, 32345), (2225, 12938), (4450, 6469)]