28555225

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 36729792

約数和(自身を除く): 8174567

約数列:

[1, 5, 25, 43, 101, 215, 263, 505, 1075, 1315, 2525, 4343, 6575, 11309, 21715, 26563, 56545, 108575, 132815, 282725, 664075, 1142209, 5711045, 28555225]

約数ペア:

[(1, 28555225), (5, 5711045), (25, 1142209), (43, 664075), (101, 282725), (215, 132815), (263, 108575), (505, 56545), (1075, 26563), (1315, 21715), (2525, 11309), (4343, 6575)]