130386380

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{25367}}^1$

素因数の和:25633

約数の個数: 24

約数和(自身を含む): 274887648

約数和(自身を除く): 144501268

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 25367, 50734, 101468, 126835, 253670, 507340, 6519319, 13038638, 26077276, 32596595, 65193190, 130386380]

約数ペア:

[(1, 130386380), (2, 65193190), (4, 32596595), (5, 26077276), (10, 13038638), (20, 6519319), (257, 507340), (514, 253670), (1028, 126835), (1285, 101468), (2570, 50734), (5140, 25367)]