209212928

素因数分解:

$2^9\times {\mathrm{401}}^1\times {\mathrm{1019}}^1$

素因数の和:1438

約数の個数: 40

約数和(自身を含む): 419470920

約数和(自身を除く): 210257992

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 401, 512, 802, 1019, 1604, 2038, 3208, 4076, 6416, 8152, 12832, 16304, 25664, 32608, 51328, 65216, 102656, 130432, 205312, 260864, 408619, 521728, 817238, 1634476, 3268952, 6537904, 13075808, 26151616, 52303232, 104606464, 209212928]

約数ペア:

[(1, 209212928), (2, 104606464), (4, 52303232), (8, 26151616), (16, 13075808), (32, 6537904), (64, 3268952), (128, 1634476), (256, 817238), (401, 521728), (512, 408619), (802, 260864), (1019, 205312), (1604, 130432), (2038, 102656), (3208, 65216), (4076, 51328), (6416, 32608), (8152, 25664), (12832, 16304)]