28751860

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1777}}^1$

素因数の和:2595

約数の個数: 24

約数和(自身を含む): 60487560

約数和(自身を除く): 31735700

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 1777, 3236, 3554, 4045, 7108, 8090, 8885, 16180, 17770, 35540, 1437593, 2875186, 5750372, 7187965, 14375930, 28751860]

約数ペア:

[(1, 28751860), (2, 14375930), (4, 7187965), (5, 5750372), (10, 2875186), (20, 1437593), (809, 35540), (1618, 17770), (1777, 16180), (3236, 8885), (3554, 8090), (4045, 7108)]